Question

11. Find the value of a for which the polynomial (x^4 - x^3 - 11x^2 - x + a) is
divisible by (x + 3).​

Answer 1

Step-by-step explanation:

this is the answer of your question.

Answer 2

x+3=0

x=-3

x⁴-x³-11x²-x+a=0

(-3)⁴-(-3)³-11(-3)²-(-3)+a=0

81+27-99+3+a=0

111-99+a=0

12+a=0

a=-12