Question

use suitable identity to find the product (5y+2) (5y-2)​

Answer 1

$(5y + 2)(5y - 2) \\ Identity : \: (a + b)(a - b) = {a}^{2} - {b}^{2} \\ \\ Here , a=5y ; b=2 \\ \\ {(5y)}^{2} - {2}^{2} \\ = 25 {y}^{2} - 4$

Hope it's correct... !

Answer 2

Step-by-step explanation:

Identity = (a+b)(a-b)

(5y+2)(5y-2)

= (5y)² - 2²

= 25y² - 4