Question

simplify
(a+b)^3-a^3-b^3
​

Answer 1

Answer:

(a+b)³-a³-b³

a³+b³+3ab(a+b)-a³-b³

a³-a³+b³-b³+3a²b+3ab²

=3a²b+3ab²

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Answer 2

Answer:

3(a^2)(b)+3(a)(b^2)

Step-by-step explanation:

(a+b)^3 - a^3 - b^3

=[a^3+3(a^2)(b)+3(a)(b^2)+b^3]-a^3-b-3

=3(a^2)(b)+3(a)(b^2)