Answer
$18x^{5}$
Work Step by Step
Using the laws of exponents, the given expression, $
(2x^3)(-3x)^2
,$ simplifies to
\begin{array}{l}\require{cancel}
(2x^3)(-3)^2x^2
\\\\=
(2x^3)9x^2
\\\\=
18x^{3+2}
\\\\=
18x^{5}
.\end{array}
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