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Mathematics 18 Online
OpenStudy (anonymous):

how would you get 42^3-12^2 from 6x^2[(3x-4)+(4x+2)]

OpenStudy (saifoo.khan):

i told you how to! :(

OpenStudy (anonymous):

i dont really understand though.

OpenStudy (saifoo.khan):

ok, how would you solve: 3x -4 + 4x + 2 ??

OpenStudy (anonymous):

you combine like terms... the 3x and 4x and -4 and 2, to get 7x-2.

OpenStudy (anonymous):

but what from there?

OpenStudy (saifoo.khan):

Great. NOw.

OpenStudy (saifoo.khan):

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