Choose the axiom in algebra that justifies each statement. 7(4 + 8) = 7 × 4 + 7 × 8
a. Associativity for Addition
b. Commutativity for Multiplication
c. Distributivity of Multiplication over Addition

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step-by-step explanation:

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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