simplify the expression (x^4+4x^3-5x-20)÷(x+4) using synthetic division. after doing the synthetic division, which gives you just coefficients. convert the coefficient quotient answer, into a polynomial with variable x and the correct exponent powers in it. convert your coefficient answer into a polynomial.
hint: remember to fill in any missing degree terms in your dividend with coefficients that are zero to represent missing place holders.

The answer to your question is:  (x³ - 5) (x + 4)

Step-by-step explanation:

x⁴ + 4x³ - 5x - 20      /     x + 4                x = -4

                  1     4     0     -5     -20           -4

                      -4       0     0    +20

                   1    0      0    -5       0        =   x³ - 5

Finally   (x³ - 5) (x + 4) = x⁴ + 4x³ - 5x - 20

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step-by-step explanation:

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