What is expand (sin(z))/(z^2*(z-4)) ?

The solution to expand (sin(z))/(z^2*(z-4)) is (sin(z))/(z^3-4z^2)

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expand (sin(z))/(z^2*(z-4))

expand

\frac{sin ( z )}{z ^{2} \cdot ( z - 4 )}

\frac{sin ( z )}{z ^{3} - 4 z ^{2}}

Solution steps

\frac{sin ( z )}{z ^{2} ( z - 4 )}

Expand

z^{2} (z - 4) : z^{3} - 4 z^{2}

= \frac{sin ( z )}{z ^{3} - 4 z ^{2}}

e^{x} (e^{y} + 2 y e^{- x})

\frac{d}{d x} ((z) (x + 2 y + z - 2 x y z))

(2 e + 4)^{2}

\frac{( x + 4 ) 3}{4}

What is expand (sin(z))/(z^2*(z-4)) ?
The solution to expand (sin(z))/(z^2*(z-4)) is (sin(z))/(z^3-4z^2)