Question

Which of the following represents the factorization of the binomial below 49x^2-81y^2​

Answer 1

(7x + 9y) (7x - 9y)

Explanation:

Factorization of binomial:

49x² - 81y² = 7²*x² - 9²*y²

= (7x)² - (9y)²

`\boxed{\text{\bf Use the identity $ a^2 - b^2 = (a + b)(a-b)$} }`

Here, 'a' corresponds to 7x and 'b' corresponds to 9y.

= (7x + 9y) (7x -9y)