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Could you guys help me remember how to factorize?
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thread starter ixaxtav Aug 27 2009 + PM | QUOTE | PERMALINK | REPORT
I completely forgot about this, because last time we learned this was 2 years ago, and it comes that now we need to do this for precalc. Could anyone help me? @___@.
moodycompute 08/27/09 + PM | QUOTE | PERMALINK | REPORT
what two numbers multiply to the integer and add up to the number before the x value? e.g x^2+3x+2 the two numbers that multiply to 2 and add up to 3 are 1 and 2 there fore (x+1)(x+2)
rod7 08/27/09 + PM | QUOTE | PERMALINK | REPORT
moodycompute : what two numbers multiply to the integer and add up to the number before the x value? e.g x^2+3x+2 the two numbers that multiply to 2 and add up to 3 are 1 and 2 there fore (x+1)(x+2) Ouch, my brain!
ixaxtav 08/27/09 + PM | QUOTE | PERMALINK | REPORT
moodycompute : what two numbers multiply to the integer and add up to the number before the x value? e.g x^2+3x+2 the two numbers that multiply to 2 and add up to 3 are 1 and 2 there fore (x+1)(x+2) Ohh, I know that one. I think there are several others, maybe thats why I have such a hard time remembering them.
ThatsBulsh 08/27/09 + PM | QUOTE | PERMALINK | REPORT
You made me do the work for you (youtube) You cheater.
ixaxtav Aug 27 2009 + PM | QUOTE | PERMALINK | REPORT
Thanks.
iRFun 08/27/09 + PM | QUOTE | PERMALINK | REPORT
moodycompute : what two numbers multiply to the integer and add up to the number before the x value? e.g x^2+3x+2 the two numbers that multiply to 2 and add up to 3 are 1 and 2 there fore (x+1)(x+2) My head hurts.
Macchiato 08/27/09 + PM | QUOTE | PERMALINK | REPORT
I have the same problem! Sorry.
moodycompute Aug 27 2009 + PM | QUOTE | PERMALINK | REPORT
ixaxtav : How do you solve this? (2/x^2-4) - (1/x^2 - 3x +2) ? well x^2-4= (x+2)(x-2) x^2-3x+2= the 2 numbers that multiply to 2 and add up to negative 3 are -1 and -2, therfore,= (x-1)(x-2). now u have to find a common denominator therefre multiply the right by x+2) and the left by (x-2) [2(x-1) - (x-2)]/(x-1)(x-2)(x+2) and simplify normally.
Masahige 08/27/09 + PM | QUOTE | PERMALINK | REPORT
hurr durr math ._.
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