Example

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

Question

$$(a^{2}+5)(b^{3}+3)+5$$

Expand

$a^{2}b^{3}+3a^{2}+5b^{3}+20$

Evaluate

$\left(a^{2}+5\right)\left(b^{3}+3\right)+5$

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