Question

Find a if x+3 is a factor of (x⁴-x³- 11x²-x+a)

Answer 1

Answer:

a= -2

Step-by-step explanation:

let x+3=0

so, x= -3

now, f(3) should be equal to 0

f(3)= (-3)⁴-(-3)³-11(-3)²-(-3)+a =0

81+27-99+3+a=0

a+2=0

a= -2