In rectangle EFGH, EH = 3 and EF = 4. Let M be the midpoint of , and let X be a point such that MH = MX and , as shown below. Find , in degrees.

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

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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