Question

what is the value of (1+pq)^2​

Answer 1

$\sf{Solution}$

Step by step explanation:-

Given to find value of

(1 + pq)²

• It is in form of (a+b)² = a²+b² +2ab

Where

• a =1
• b = pq

(1 + pq)² = (1)² + (pq)² + 2 (1)(pq)

(1 + pq)² = 1 + p²q² + 2pq

(1 + pq)² = p²q² + 2pq + 1

_____________________________

Know more identities :-

(a-b)² = a²+b²-2ab

(a + b)(a-b) = a²-b²

(a+b)² -4ab = (a-b)²

(a+b)² + (a-b)² = 2a² +2b²

(a+b)³ = a³+b³ +3ab(a+b)

(a-b)³ = a³-b³-3ab(a-b)