Part A: Factor x2b2 − xb2 − 6b2. Show your work. Part B: Factor x2 + 4x + 4. Show your work.

Part C: Factor x2 − 4. Show your work

A.2b2(x2-x-3)

B.x2+2x+2x+4

=x(x+2)+2(x+2)

=(x+2)(x+2)

C.x2-2^2

=(x+2)(x+2)

i'm pretty sure it's 477,585,296, but perhaps my math is incorrect.

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: