Question

What are the zeros
of a polynomial 9-4x2?
​

Answer 1

$9 - 4 {x}^{2} \\ = {(3)}^{2} -( 2 {x})^{2} \\ = (3 - 2x)(3 + 2x)$

Hence,

Zeros are

x = -3/2

or

x = 3/2