Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$( a + b ) ( a ^ { 2 } + 2 a b + b ^ { 2 } )$$

Evaluate

$\left(a+b\right)^{3}$

Expand

$a^{3}+3ab^{2}+b^{3}+3ba^{2}$

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