Question

use a suitable identity to get reach of the following products (2y+5)(2y-5)​

Answer 1

Answer:

2y*-10

Step-by-step explanation:

2y (5 * -5) (distributive property)

2y * (-10)

2y*-10

Answer 2

Answer:

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

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

4y^2 - 10y + 10y -25

4y^2 -25

4y^2 =25

y^2 = 25/4

y = ✓ 25/4

y = 5/2