Question

question 6 of 10
what is the form of the difference of squares identity?

a. $a^2 - b^2 = (a + b)(a - b)$

b. $a^2 - b^2 = (a - b)(a - b)$

c. $a^2 + b^2 = (a - b)(a - b)$

d. $a^2 - b^2 = (a + b)(a + b)$

Explanation:

The Difference of Squares identity states that the difference of two squares factors into the product of the sum and difference of their square roots. Option A matches this definition, while others are incorrect (B is a square of difference, C mixes sum of squares with wrong factors, D is a square of sum).

Answer:

A. $a^2 - b^2 = (a + b)(a - b)$