Simplify (-(4x^2)/y)(-(6y^4)/(x^5))

$(- \frac{4 x^{2}}{y}) (- \frac{6 y^{4}}{x^{5}})$

Cancel the common factor of $x^{2}$ .

Move the leading negative in $- \frac{4 x^{2}}{y}$ into the numerator.

$\frac{- 4 x^{2}}{y} (- \frac{6 y^{4}}{x^{5}})$

Move the leading negative in $- \frac{6 y^{4}}{x^{5}}$ into the numerator.

$\frac{- 4 x^{2}}{y} \cdot \frac{- 6 y^{4}}{x^{5}}$

Factor $x^{2}$ out of $- 4 x^{2}$ .

$\frac{x^{2} \cdot - 4}{y} \cdot \frac{- 6 y^{4}}{x^{5}}$

Factor $x^{2}$ out of $x^{5}$ .

$\frac{x^{2} \cdot - 4}{y} \cdot \frac{- 6 y^{4}}{x^{2} x^{3}}$

Cancel the common factor.

$\frac{x^{2} \cdot - 4}{y} \cdot \frac{- 6 y^{4}}{x^{2} x^{3}}$

Rewrite the expression.

$\frac{- 4}{y} \cdot \frac{- 6 y^{4}}{x^{3}}$

Cancel the common factor of $y$ .

Factor $y$ out of $- 6 y^{4}$ .

$\frac{- 4}{y} \cdot \frac{y (- 6 y^{3})}{x^{3}}$

Cancel the common factor.

$\frac{- 4}{y} \cdot \frac{y (- 6 y^{3})}{x^{3}}$

Rewrite the expression.

$- 4 \frac{- 6 y^{3}}{x^{3}}$

Combine $- 4$ and $\frac{- 6 y^{3}}{x^{3}}$ .

$\frac{- 4 (- 6 y^{3})}{x^{3}}$

Multiply $- 6$ by $- 4$ .

$\frac{24 y^{3}}{x^{3}}$