Question

Check 3 is a zero of the polynomial p(x)= 3x2-27

Answer 1

see explanation

Explanation:

If x = 3 is a zero then p(3) = 0 , that is

p(3) = 3(3)² - 27 = 3(9) - 27 = 27 - 27 = 0

Thus x = 3 is a zero of p(x)

Answer 2

Explanation:

p(x) = 3x² - 27

p(3) = 3*3² - 27

= 3 * 9 - 27

= 27 - 27

= 0

p(3) =0 . Therefore, 3 is z zero of p(x)