Question
Find the following product:
$a b\left(a^2-b^2\right)$
$a b\left(a^2-b^2\right)$
✓
Answer
$=a b \times a^2-a b \times b^2$
$=a^{(1+2)} b-a b^{(1+2)}$
$-a^3 b-a b^3$
$=a^{(1+2)} b-a b^{(1+2)}$
$-a^3 b-a b^3$
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