Question

1. Find the following by using Identity-I.
(i) (2x + 5)2
(ii) (8x + 3y)?
(iv) (7pq + 4ab)2
(v) (0.2x + 1.5y)?​

Answer 1

Step-by-step explanation:

use this identity in all parts..Im solving only 1st part

(a+b)²=a²+2ab+b²

so

(2x+5)²=(2x)²+2(2x)(5)+(5)²

=4x²+20x+25

hope it will help you for other parts.