Yahoo Answers: Answers and Comments for Explain the error made in solving the equation below. Then solve the equation correctly.? [Mathematics]
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From WOW
enUS
Tue, 01 Jun 2010 21:00:26 +0000
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Yahoo Answers: Answers and Comments for Explain the error made in solving the equation below. Then solve the equation correctly.? [Mathematics]
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https://answers.yahoo.com/question/index?qid=20100601210026AAfVyYQ
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From xXBlizzXx: Thats not even remotely correct, I don't k...
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Tue, 01 Jun 2010 21:03:02 +0000
Thats not even remotely correct, I don't know what the person was trying to do. But I can show you how it should be done.
(x+2)(x3) = 6
x^2  x  6 = 6
x^2  x  12 = 0
(x4)(x+3) = 0
x = 3, 4

From Vectah Boi: You can only solve that way when the equation ...
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Tue, 01 Jun 2010 21:07:03 +0000
You can only solve that way when the equation = 0
Since it equals 6, you need to work it out again:
x^2 +2x  3x  6 = 6
x^2  x  12 = 0
(x  4)(x + 3) = 0
x = 4
x = 3

From Anonymous: Another equals was added. That is the mistake,...
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Tue, 01 Jun 2010 21:04:24 +0000
Another equals was added. That is the mistake, not to mention the random adding of a six next to the second x.
(x + 2)(x  3) = x^2  x  6
x^2  x  6  6 = 0
x^2  x  12 = 0
(x + 3)(x  4)

From Anonymous: x + 2 not equals 6
x  3 not equals 6
only ...
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Tue, 01 Jun 2010 21:04:11 +0000
x + 2 not equals 6
x  3 not equals 6
only works if (x+2)(x  3) = 0
Solve: FOIL it out.
x^2  x  6 = 6
x^2  x  12 = 0
(x  4)(x + 3) = 0
x  4 = 0 : x + 3 = 0
x = 4, 3

From Anonymous: i dont see how x can represent both numbers.
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Tue, 01 Jun 2010 21:07:15 +0000
i dont see how x can represent both numbers.