Question

find the product
(2x+3y) (2x-3y)

Answer 1

(2x+3y) (2x-3y).

$use \: formula \: (a + b)(a - b) = {a}^{2} - {b}^{2}$

a=2x

b=3y

${(2x)}^{2} - {(3y)}^{2}$

${4x}^{2} - {9y}^{2}$

Answer 2

(2x + 3y) (2x - 3y)

(2x)² - (3y)²

4x² - 9y²