On the coordinate plane below, what is the length of AB? A coordinate plane is shown with a rectangle with the following points A at negative 6, 5; B at 8, 5; C at 8, negative 4; D at negative 6, negative 4. All points are connected to create a rectangle.

answer: this is not a question

step-by-step explanation: this is a answer

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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