Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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#26 2010-04-25 16:22:15
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Word Problem
Yes, have you been taught how to complete the square?
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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#27 2010-04-26 05:40:42
- Spanky
- Member
- Registered: 2010-02-24
- Posts: 62
Re: Word Problem
Kind of. We only went over it for a few minutes. Do you have to complete the square to finish the problem?
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#28 2010-04-26 08:43:57
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Word Problem
No you are done, but this is one spot where I think completing the square might be better than the quadratic formula.
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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#29 2010-04-26 10:34:56
- Spanky
- Member
- Registered: 2010-02-24
- Posts: 62
Re: Word Problem
Oh, ok i see
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