Question

1Simplified form of (2p + 3)² -(2p - 3)²​

Answer 1

Answer:

(2p + 3)-(2p-3)

(2p²+3²+2×2p×3) - (2p²+3²-2×2p×3.) {Using identity (a+ b)²=a²+b²+ 2ab and (a-b)² =a²+b²- 2ab}

(4p²+9+ 12p)-(4p²+9-12p²)

4p²+9+12p - 4p²- 9+12p

4p²+9 = -4p² -9² cancel

12p+12p

24p