Question

check whether g(x)=x+3 is a factor of the polynomial f(x)=x^5+3x^4-x^3-3x^2+5x+15.

Answer 1

Answer:

0 is the answer...

Step-by-step explanation:

g(x)=x+3=0

=x=-3

f(x)=x⁵+3x⁴-x³-3x²+5x+15

=(-3)⁵+3(-3)⁴-(-3)³-3(-3)²+5(-3)+15

=-243+3(81)-(-27)-3(9)-15+15

=-243+243+27-27-15+15

=0+0+0

=0