What is the expression: (a^2-)^2 - (b^2)^2, an example of?

Question

A) a system of equations

B) a polynomial of degree 2

C) a difference of squares

D) an exponential function

Answer 1

This is the difference of two squares.

Difference means "subtract" and the two terms are being subtracted.

Squares are numbers or expressions that are something times itself, like 9 is 3 times 3, x² is x times x and (a²)² is a² times a²