Question

a
$(a + b) {?}^{2}$
​

Answer 1

(a+b)^2

= a^2 +2ab +b^2

↑ Hope it helps.

Answer 2

Question :

(a+b)²

Answer :

(a+b)²

= a²+ b² + 2ab

Some Identities :

• a²-b² = (a+b)(a-b)
• (a-b)² = a²+b²-2ab
• a³+b³ = (a+b)(a²-ab+b²)
• a³-b³ = (a-b)(a²+ab+b²)
• (a+b)³ = a³+b³+3ab(a+b)
• (a-b)³ = a³-b³-3ab(a-b)