Question

find the 0 of polynomial x² -9?​

Answer 1

Answer:

Let p(x) = x^2 -9

p(3) = 3^2 -9

= 9-9 = 0

therefore, 3 is the zero of polynomial x^2-9

Answer 2

Answer:

x2-9

(x-3)(x+3)

x=3 or x=-3