Question

Which identity could be used to rewrite the expression x^4-100?

Answer 1

Given the polynomial of degree 4, this can be written as:
x^4-100
let
x^2=a
thus the expression can be written as:
a^2-100
this is a polynomial of degree 2 also known as quadratic equation.
Hence the answer is:
A) Quadratic formula

Answer 2

Answer: D: difference of squares (apex)

Step-by-step explanation: