Math Is Fun Forum
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#1076 2011-01-21 10:44:13
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
Um... well... ugh, I feel pressured! I don't know what to do! Um...
√49 = 7
There. It is positive. The math does not lie. Correct?
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#1077 2011-01-21 10:45:28
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
So it is positive, so what! Does that prove that
( 5a + 7 ) ( 5a + 7 ) is the answer?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1078 2011-01-21 10:47:51
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
I'm sorry! I thought you wanted me to prove it was positive!
Yes, thats right!
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#1079 2011-01-21 10:49:04
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
What is right? Must I evoke the image of Robert "Big Bobby" Baccala to get you motivated?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1080 2011-01-21 10:53:34
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
No....
( 5a + 7 )(5a + 7)
*f* 5a^2 = 25a^2
*o* 5a * 7 = 35a
*i* 7 * 5a = 35a
*l* 7 * 7 = 49
= 25a^2 + 35a + 35a + 49
= 25a^2 + 70a + 49
There! Take that bobbym!
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#1081 2011-01-21 10:57:08
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Oh, you got me! That is darn close. Please take a look at post # 1048!
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1082 2011-01-21 12:15:03
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
Shoot! What did I mess up this time?
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#1083 2011-01-21 12:19:11
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Did you look at the post I suggested or must Bobby Baccala show his face again?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1084 2011-01-21 12:28:16
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
25a^2 - 70a + 49
Yes, I did. But I'm still a bit lost... and please no, i would rather not see him again.
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#1085 2011-01-21 12:32:45
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Good, I have a means to frighten you into correct math.
Do you remember what your factorization came out to?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1086 2011-01-21 12:44:28
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
Great... just what I always needed.
Yes?
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#1087 2011-01-21 12:46:22
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Did you see that it does not multiply out to the original problem?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1088 2011-01-21 12:48:35
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
But I got 25a^2 - 70a + 49
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#1089 2011-01-21 12:52:33
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Nope!
= 25a^2 + 70a + 49
See post # 1080.
The problem was 25a^2 - 70a + 49
What do you think went wrong?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1090 2011-01-21 12:55:47
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
Oooh... um I'm not sure...
What do you think?
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#1091 2011-01-21 12:59:00
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Let us go back to this:
( 5a +- 7 ) ( 5a +- 7 ) where you made the choice of ++. Was there anything else to do?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1092 2011-01-21 13:00:26
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
I could have made it negative?
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#1093 2011-01-21 13:04:49
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Why, would you do such a thing? That is kooky, that is silly, that is a dilly.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1094 2011-01-21 13:06:09
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
I don't know! >.<
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#1095 2011-01-21 13:06:36
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Try it!
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1096 2011-01-21 13:18:16
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
( 5a - 7 )(5a - 7)
*f* 5a^2 = 25a^2
*o* 5a * -7 = -35a
*i* -7 * 5a = -35a
*l* -7 * -7 = 49
= 25a^2 - 35a - 35a + 49
= 25a^2 - 70a + 49
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#1097 2011-01-21 13:22:44
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Very good! That is some math. No arguing with that.
Are your riled up and ready? Do you say to yourself I wish that I could set bobbym's face on fire and try to put it out with an ice pick? If so you are ready!
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1098 2011-01-21 13:27:03
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
While that sounds incredibly fun, I am actually more tired then riled.
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#1099 2011-01-21 13:31:31
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Equations with parenthesis?
Need a little breather or a major dose of sleep? Or maybe a little snack? Want some pizza?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#1100 2011-01-21 13:34:30
- misheeru
- Member
- Registered: 2010-02-18
- Posts: 4,594
Re: Equations with parenthesis?
I'm thinking about a nap roughly an hour long. But when I return, I'd like to do more...
(I never thought I'd be saying that about math LOL)
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