What is the product of x^4-1/x+1? show all work

            x^3 - x^2 + x - 1
x + 1    x^4 - 1
        -(  x^4 + x^3
                 -x^3 - 1
        -(       -x^3 - x^2
                       x^2 - 1
        -(             x^2 + x
                             -x - 1
        -(                   -x - 1

Therefore, (x^4 - 1)/(x + 1) = x^3 - x^2 + x - 1

No he does not because he can only cover 12 square feet from 15 square feet which he will still need 3 more. this is because if 3×5=15 square feet and 15-12=3 which thats the answer

A. is the answer in this question