What is the remainder of x3 − 3x2 + 7x + 5 divided by (x + 4)?

-135

Explanation:

1) I will use synthetis division

2) Write the coefficients of the divisor in order

   1    -3    7    5

3) Dividing by x + 4 => use x = - 4

4) Division:

      | 1     -3       7       5
      |
 - 4 |       -4    +28   - 140

        1    -7      35    - 135

5) The last number is the remainder: - 135