math

The factors of w^2r^2-1 are (wr-1)(wr+1). To factor this expression, we use the distributive property to separate and rearrange the terms of the expression. First, distribute the -1: w^2r^2-1 = wr^2 - 1 Then, factor out the greatest common factor: wr^2 - 1 = w(r^2-1) Finally, use the difference of squares formula, (a-b)(a+b), to factor the remaining terms: w(r^2-1) = w(r+1)(r-1) So, the factors of w^2r^2-1 are (wr-1)(wr+1).