Assuming that $3x + 12y\neq0$, simplify $\dfrac{12x^3 + 48x^2y}{3x+12y}$.
Assuming that 3x + 12y ≠ 0 , simplify
\(\dfrac{12x^3 + 48x^2y}{3x+12y}\) Factor 4x2 out of the numerator.
\(=\,\dfrac{4x^2(3x + 12y)}{3x+12y}\) Divide the numerator and denominator by 3x + 12y .
\(=\,4x^2\)
