What is the result when 3x3 + 20x2 – 11x – 28 is divided by x + 7?

Step-by-step explanation:

Let's perform this division using synthetic division.  The coefficients of the given expression are {3, 20, -11, -28}, and the appropriate divisor is -7 (that comes from x + 7):

-7    /     3       20     -11       -28

                     -21        7       28

             3         -1      -4         0

Since the remainder is 0, -7 is a root of the given expression, and the coefficients of the quotient are {3, -1, -4}.  The quotient is therefore

3x^2 - x - 4

could you reply to this with the question so i can ?

my answer is$ 12

step-by-step explanation:

because 15 -2=12