Question

please solve it !!!
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Answer 1

The product is :

$\frac{ - 4}{9} \times {x}^{4}y \: \times {xy}^{3} \times {x}^{3} {y}^{2} \\ = \: \frac{ - 4}{9} \times {x}^{4 + 1 + 3} \times {y}^{1 + 3 + 2} \\ = \: \frac{ - 4}{9} {x}^{8} {y}^{6}$

Hope it helps you...