Match each expression with its greatest common factor. 12a^2− 8a 2a^2 + 8a 4a + 8 4 − 6a Greatest Common Factor Expression: 4: 4a: 2 2a

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answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

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