Question

Verify whether the following zeroes of the polynomial, indicated against them.

p(x) = x² – 1, x = 1, –1

Answer 1

If x = 1 and x = −1 are zeroes of polynomial p(x) = x² − 1, then p(1) and p(−1) should be 0.

Here, p(1) = (1)² − 1 = 0, and

p(−1) = (−1)² − 1 = 0

Hence, x = 1 and −1 are zeroes of the given polynomial.