What is (9y2-49)?

Answer 1

The expression (9y^2 - 49) is a difference of squares, which can be factored using the formula (a^2 - b^2 = (a - b)(a + b)). Here, (9y^2) is ( (3y)^2) and (49) is (7^2). Therefore, the factored form is ((3y - 7)(3y + 7)).