A supplementary angle is spilt into 2 angles. One angle is 2x + 20° . The other angle is 40°. Solve for x and find the measurement of the missing angle.

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

ur right ive taken the test

step-by-step explanation:

a reflection across the x axis and a 90 degree rotation left and right.