Question

Find the following by using Identity-1
(i) (2x + 5)2
​

Answer 1

Answer:

2x+5X2

7xX2

14x

X=14

Hope this helps you

but I don't know actual solution

Answer 2

Answer:

(2x + 5)2 = 1

2x X 2 + 5 × 2 = 1

4x + 10 = 1

4x = 1 - 10

4x = -9

x = -9

4