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Mathematics 12 Online
OpenStudy (afloridagirl):

Find the product of (x + 5)(x − 5).

OpenStudy (afloridagirl):

find the product of (x + 5)(x − 5). x2 − 10x + 25 x2 + 10x + 25 x2 − 25 x2 + 25

OpenStudy (afloridagirl):

@agent0smith

OpenStudy (afloridagirl):

anyone?

OpenStudy (photon336):

have you heard of FOIL ?

OpenStudy (afloridagirl):

distribution right?

OpenStudy (afloridagirl):

is it d

OpenStudy (afloridagirl):

or c?

OpenStudy (afloridagirl):

it would be c

OpenStudy (photon336):

Yeah something like that when we start off it's called First Outer Inner Last ill show you the whole thing in steps. so first we multiply the two x's |dw:1465516051532:dw| then we multiply the two outer terms |dw:1465516129767:dw| then we multiply the two inner terms |dw:1465516180009:dw| then finally we multiply the last two terms together |dw:1465516211938:dw| and here is what we end up getting \[x^{2}-5x+5x-25\]

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