Question

check wheter -2 and 2 are zeros of the polynomial x + 2 . with full explanation

Answer 1

p(x) = x+2

p(-2) = -2+2

= 0

therefore, -2 is a zero of the polynomial p(x).

p(x) = x+2

p(2) = 2+2

=4

therefore, 2 is not a zero of the polynomial p(x).

Answer 2

P(2)=2+2=4

p(-2)=2-2=0

-2 is the only zero of the polynomial x+2