) In a right triangle, a and b are the lengths of the legs and c is the length of the
hypotenuse. If b = 5.4 millimeters and c= 8.3 millimeters, what is a? If necessary, round to
the nearest tenth.

a

step-by-step explanation:

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