Multiply (–2x3y2z)(5x6yz). Question 15 options:

A)

–10xy3z2

B)

–10x9y3z2

C)

–10x3y2z2

D)

10x18y12z

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

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

using pemdas, (order of operations) you'll see the answer is 24.