Sangeetha Pulapaka
0

STEP 1: Recall what is a polynomial

https://virtualnerd.com/algebra-1/exponents-exponential-functions/monomials-polynomials/polynomials/polynomial-definition

STEP 2: Set the polynomial to zero

4x^{2}-64 = 0

4x^{2} = 64

\frac{4x^{2}}{4} = \frac{64}{4}

x^{2} = 16

x = \pm 4

So, x = + 4 and x = -4 are the roots of the polynomial.

Skills to recall

How to find the square root of a number

http://www.math.com/school/subject1/lessons/S1U1L9DP.html