Question

Verify whether -1 and 2 are zeros of polynomials P(x) = (x+1) (x-2).

Answer 1

Answer:

put the value of zeros in the polynomial

take -1

p(-1)=(-1+1)(-1-2)

= 0(-3)

= 0

take 2

p(2)=(2+1)(2-2)

=(3)(0)

=0

hence both are zeros of the polynomial

hope you understand