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Mathematics 14 Online
OpenStudy (anonymous):

problem inside :)

OpenStudy (anonymous):

OpenStudy (anonymous):

A. (x - 2)(x + 6)(x - 6) B. (x - 4)(x + 3)(x + 2) C. (x - 3)(x + 3)(x - 8) D. (x - 3)(x + 4)(x - 6)

OpenStudy (anonymous):

my answer: D. (x-3)(x+4)(x-6) am i right??

OpenStudy (anonymous):

i didn't.. here is what i did...

hero (hero):

(x - 3)(x + 4)(x - 6) =(x(x + 4) - 3(x + 4))(x - 6) = (x^2 + 4x - 3x - 12)(x - 6) = (x^2 + x - 12)(x - 6) = x^2(x - 6) + x(x - 6) - 12(x - 6) = x^3 - 6x^2 + x^2 - 6x - 12x + 72 = x^3 - 5x^2 - 18x + 72

OpenStudy (anonymous):

|dw:1351824541776:dw| right?? i am correct right?? it is answer D??

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