Question

Q1) Expand the following using suitable identity—
a) (7pq + 4mn)2
b) (3a – 9b)2
c) (-5x + y + 3x)2
d) (x + 4)(x - 3)

Answer 1

Answer:

Here's ur ans

Step-by-step explanation:

a) ( 2×7pq ) +(2×4mn

b) (2×3a) -(2×9b)

c) 2× (-2 x+y)

d) 2x +(4-3)=2x+1