Question

Simplify by using identity: (2p – 3q )2

- (2p + 3q )2
​

Answer 1

Step-by-step explanation:

using identity (a-b)²=a²+b²-2ab and (a+b)²=a²+b²+2ab.

(4p²-9q²-12pq)-(4p²+9q²+12pq)

4p²-9q²-12pq-4p²-9q²-12pq

-18q²-24pq

-(18q²+24pq)