Question: Tick (✓) the correct answer:
8a2b3 ÷ (−2ab) = ?
(a) 4ab2
(b) 4a2b
(c) −4ab2
(d) −4a2b
Solution:
(c) $-4 a b^{2}$
$8 a^{2} b^{3} \div(-2 a b)$
$\Rightarrow\left(\frac{8}{-2}\right)\left(a^{2-1}\right)\left(b^{3-1}\right)$
$\Rightarrow-4 a b^{2}$
