Question

(a+b)³.................?????​

Answer 1

Answer:

${(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab(a + b)$

Answer 2

Answer:

↪(a+b)³ = a³+3a²b+3ab²+b³

Or

↪(a+b)³ = a³+b³+3ab(a+b)

Explanation:➡

(a+b)³

= (a+b)(a+b)²

= (a+b)(a²+2ab+b²)

= a(a²+2ab+b²)+b(a²+2ab+b²)

= a³+2a²b+ab²+a²b+2ab²+b³

= a³+3a²b+3ab²+b³

Or

= a³+b³+3a²b+3ab²

= a³+b³+3ab(a+b)

Therefore,

➡(a+b)³ = a³+3a²b+3ab²+b³

Or ,

➡(a+b)³ = a³+b³+3ab(a+b)

⭐hope its helpful (❤gm)