Answer
$x^2(32x-9)$
Work Step by Step
The given expression is $3x^2(8x-3)+x^3\cdot 8$.
Factor out $x^2$.
$=x^2[3(8x-3)+8x]$
Use distributive property.
$=x^2[24x-9+8x]$
Add like terms.
$=x^2(32x-9)$
Hence, the completely factored form is $x^2(32x-9)$.
