Question

Expand :

i. (ax + by)² 

ii. (7m – 4)²

iii. \((x + \frac{1}{2})^2\)

iv. \((a - \frac{1}{a})^2\)

Answer 1

i. (ax + by)² 

Here, A = ax and B = by

ii. (7m – 4)² 

Here, a = 7m and b = 4

iii. \((x + \frac{1}{2})^2\)

Here a = x and b = 1/2

iv. \((a - \frac{1}{a})^2\)

Here A = a and B = 1/a