Question

check whether -2 and 2 are zeros of polynomial x+2?​

Answer 1

Given, p(x) = x+2

Put p(x) = -2

=>p(-2) = -2+2 = 0

since p(-2) gives the answer 0. So, p(-2) is the zero of the given polynomial.

Put p(x) = 2

=>p(2) = 2+2 = 4

since p(2) gives the answer 4, not 0. So, p(2) is not the zero of the given polynomial.