Question

One factor of x^3+2x^2-11x-12 is x+4. Find the remaining factors.
a. x+1, x+3
b. x-1, x+3
c. x+1, x-3
d. x-1, x-3

Answer 1

I think you need to divide the polynomial by x+4

Answer 2

I think you need to divide the polynomial by x+4.

also, look at the sign of the 12 term. Since you have x+4 given, then one of the two remaining factors has to have a negative which means d and a cannot be correct.

Answer 3

got it! thanks