Question

simplify (2y+5)( 2y-5)​

Answer 1

Answer:

y=5/2

Step-by-step explanation:

(a+b )(a-b)

a square -b square

4y square =25

y square =25/4

y =5/2

Answer 2

$(2y + 5)(2y + 5) \\ = \\ (2y + 5)^{2} \\ = {(2y)}^{2} \times 2(2y)5 + {(5)}^{2} \\ = 4y^{2} + 20y + 25$