Polynomials in the form of difference of squares can be factored as:

Question

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

Select all of the polynomials below that are in the form of difference of squares.
(Select all that apply.)

Answer 1

1. 16x^2-25y^2
2. 9a^2-4b^2
3. x^2-y^2

Correct answers:
1. 16x^2-25y^2
2. 9a^2-4b^2