Multiplying and Dividing Rational Expressions

zee-f · 2011-09-13 00:05:52

i went with

16- F

17-F

18-D

19-A

20- F

In each of the problems 16 20, the simplification of a division problem is given. Identify the first step where a mistake occurs, if there are any.
images are uploaded for the questions ))

16. (i went with F on this one ))

ANo mistakes
B(1)
C(4)
D(2)
EThe problem cannot be simplified.
F(3)

17. (i went with F on this one ))

A(2)
BThe problem cannot be simplified.
C(4)
D(3)
ENo mistakes
F(1)

18.(( i went with d ))

A(2)
BNo mistakes
C(4)
D(3)
EThe problem cannot be simplified.
F(1)

19. (( i went with A))

ANo mistakes
B(2)
CThe problem cannot be simplified.
D(3)
E(4)
F(1)

20.((i went with F))

AThe problem cannot be simplified.
B(1)
C(3)
D(2)
E(4)
FNo mistakes

bobbym · 2011-09-13 00:12:23

Hi;

For 16 I went with A.

zee-f · 2011-09-13 00:16:36

dont you think they simplified wrong in the 3 step because the 6y and 3y^2 simplifies to 2 and y 6y divided by 3y gives us 2

Last edited by zee-f (2011-09-13 00:19:25)

bobbym · 2011-09-13 00:19:49

Hi;

17 F is correct.
18 D is correct.

zee-f · 2011-09-13 00:23:08

hey bobbym what do you think about what i said in post 53

bobbym · 2011-09-13 00:26:02

Hi;

zee-f · 2011-09-13 00:28:34

yup so in number 16 step 3 is wrong they simplified the 6 to a 1

bobbym · 2011-09-13 00:30:16

Hi;

Step 3 is correct, 16 has no mistakes.

zee-f · 2011-09-13 00:31:42

but they said that that 6y simplifies to a one isn't it spouse to simplify to a 2 ?

bobbym · 2011-09-13 00:33:57

Hi;

You end up with a 2 on top and a 4 on the bottom.

zee-f · 2011-09-13 00:34:02

oooooh they simplified the 2/4y to a 1/2y

zee-f · 2011-09-13 00:36:56

19 i think has no mistakes

bobbym · 2011-09-13 00:41:15

19 has a mistake on the last step.

zee-f · 2011-09-13 00:42:31

yeah its spouse to be 9x^5

bobbym · 2011-09-13 00:44:30

That is correct!

zee-f · 2011-09-13 00:53:13

in 20 didnt they simplified wrong in the last step ?

bobbym · 2011-09-13 00:55:09

Hi;

No, the second step is wrong!

zee-f · 2011-09-13 00:59:16

yeah they factored wrong

zee-f · 2011-09-13 01:01:13

bobbym guess what i just submitted my work and it automatically corrects sense its a multiple choice answers i got a 10 wowwwwwwwwwwwwwwwwwww thank you so so soooo soooooooooooooooo much

bobbym · 2011-09-13 01:03:36

Hi zee-f;

Very good! Glad to help.

zee-f · 2011-09-13 01:13:18

yup yup yup am working on Adding and Subtracting Rational Expressions right now

zee-f · 2011-09-13 01:15:29

hey bobbym like i have to simplify this 3x/7 + x/14

i got 6x/14 + x/14 then 6x^2/14 can i simplify that more if i did would it give me 3x^2/7 ???

Last edited by zee-f (2011-09-13 01:17:16)

bobbym · 2011-09-13 01:18:03

Hi;

That is not correct. You are adding. Since the denominators ( bottom ) are the same. You just add the tops together.

zee-f · 2011-09-13 01:33:09

so 7x/14 is correct ?

bobbym · 2011-09-13 01:37:26

Hi;

Math Is Fun Forum

#51 2011-09-13 00:05:52

Re: Multiplying and Dividing Rational Expressions

#52 2011-09-13 00:12:23

Re: Multiplying and Dividing Rational Expressions

#53 2011-09-13 00:16:36

Re: Multiplying and Dividing Rational Expressions

#54 2011-09-13 00:19:49

Re: Multiplying and Dividing Rational Expressions

#55 2011-09-13 00:23:08

Re: Multiplying and Dividing Rational Expressions

#56 2011-09-13 00:26:02

Re: Multiplying and Dividing Rational Expressions

#57 2011-09-13 00:28:34

Re: Multiplying and Dividing Rational Expressions

#58 2011-09-13 00:30:16

Re: Multiplying and Dividing Rational Expressions

#59 2011-09-13 00:31:42

Re: Multiplying and Dividing Rational Expressions

#60 2011-09-13 00:33:57

Re: Multiplying and Dividing Rational Expressions

#61 2011-09-13 00:34:02

Re: Multiplying and Dividing Rational Expressions

#62 2011-09-13 00:36:56

Re: Multiplying and Dividing Rational Expressions

#63 2011-09-13 00:41:15

Re: Multiplying and Dividing Rational Expressions

#64 2011-09-13 00:42:31

Re: Multiplying and Dividing Rational Expressions

#65 2011-09-13 00:44:30

Re: Multiplying and Dividing Rational Expressions

#66 2011-09-13 00:53:13

Re: Multiplying and Dividing Rational Expressions

#67 2011-09-13 00:55:09

Re: Multiplying and Dividing Rational Expressions

#68 2011-09-13 00:59:16

Re: Multiplying and Dividing Rational Expressions

#69 2011-09-13 01:01:13

Re: Multiplying and Dividing Rational Expressions

#70 2011-09-13 01:03:36

Re: Multiplying and Dividing Rational Expressions

#71 2011-09-13 01:13:18

Re: Multiplying and Dividing Rational Expressions

#72 2011-09-13 01:15:29

Re: Multiplying and Dividing Rational Expressions

#73 2011-09-13 01:18:03

Re: Multiplying and Dividing Rational Expressions

#74 2011-09-13 01:33:09

Re: Multiplying and Dividing Rational Expressions

#75 2011-09-13 01:37:26

Re: Multiplying and Dividing Rational Expressions

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