Question

Using identity find :
(2x+5)(2x+5)

Answer 1

Step-by-step explanation:

(2x+5)^2

(2x)^2+2×2x×5+(5)^2

4x^2+20x+25

Answer 2

Step-by-step explanation:

(2x+5)(2x+5)

=(2x+5)^2

Identity used here is

(a+b)^2=a^2+2ab+b^2

(2x+5)^2=4x^2+20x+25