Question

question
fully simplify.
$-10x^{3}y^{2}(9x)$

Explanation:

Step1: Multiply the coefficients

Multiply -10 and 9.
$-10\times9 = -90$

Step2: Multiply the x terms

Use the rule $a^m \cdot a^n = a^{m + n}$ for $x^3$ and $x$.
$x^3 \cdot x = x^{3 + 1}=x^4$

Step3: Combine the results

The $y^2$ term remains as it is. Multiply the coefficient result, the $x$ result, and the $y$ term together.
$-90\times x^4\times y^2=-90x^4y^2$

Answer:

$-90x^4y^2$