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Mathematics 9 Online
OpenStudy (lukecrayonz):

Factoring 7x^2-8x-12 by grouping?

OpenStudy (lukecrayonz):

@ranga

OpenStudy (anonymous):

(-6 + -7x)(2 + -1x)

OpenStudy (lukecrayonz):

No work?

OpenStudy (anonymous):

nope i did it in my head

OpenStudy (anonymous):

but i can show you?

OpenStudy (lukecrayonz):

please do :X I know how to do it w/o grouping lol

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

first you have to solve the equation to find x

OpenStudy (anonymous):

oops, sorry you want grouping

OpenStudy (anonymous):

ok the first step is to find the values… a = 7 b = -8 c = -12

OpenStudy (anonymous):

and since a doesn't equal 1 you have to use grouping anyways

OpenStudy (anonymous):

good so far?

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