13. one pound of flour contains about four cups. a recipe calls for 2 1/4 с of flour. how many full recipes can
you make from a two-pound bag of flour?

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step-by-step explanation:

answer: what are the following choices

hello from mrbilldoesmath!

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