Question

a) Show that x+1, X-2, and x+3 are the factors of the polynomial p(x)=x² + 2x2–5x-6.​

Answer 1

Answer:

x+`1=0

x=-1

p(-1)=(-1)^2+2x2-5(-1)-6

1+4+5-6

10-6

4,p(x+1)=4

x-2=0

x=2

p(2)=2^2+4-5*2-6

=4+4-10-6

=8-16=-8

x+3=0

x=-3

-3^2+4-5*-3-6

9+4+15-6

22

Step-by-step explanation: