Question

solve by identities (3/4a-2/3b)²​

Answer 1

Answer:

2467677666666655566666

Answer 2

Answer:

As we know (x-y)² = x²+y²-2xy

Substitute x = 3/4a and y= 2/3b

Then you get,

(3/4a)² + (2/3b)² - 2.(3/4a)(2/3b)

→ (9/16a²) + (4/9b²) - (1/ab)