Question

`\: \: solve \: \\ \\ (a \: + \: b) {}^(3) = {?}`
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Answer 1

`\huge\boxed{Answer\hookleftarrow}`

`(a + b) {}^(3) \\ = (a + b) * (a + b) {}^(2) \\ = (a + b)(a {}^(2)  + 2ab + b {}^(2) ) \\ = a(a {}^(2)  + 2ab + b {}^(2) ) + b(a {}^(2)  + 2ab + b {}^(2) ) \\ = a {}^(3)  + 2a {}^(2) b + ab {}^(2)  + ba {}^(2) + 2ab {}^(2)  + b {}^(3) \\ = a {}^(3)  + 3a {}^(2) b + 3ab {}^(2)  + b {}^(3)`

✐ (a + b)³ = a³ + 3a²b + 3ab² + b³

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

# ꧁❣ RainbowSalt2²2² ࿐

Answer 2

Explanation:

• (a+b)³

=a³+3a²b+3ab²+b³

hope it is helpful to you