Example

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

Question

$$( a + 2 b ) ^ { 3 } + ( a - 2 b ) ^ { 3 }$$

Evaluate

$2a\left(a^{2}+12b^{2}\right)$

Expand

$2a^{3}+24ab^{2}$

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