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Input:
`d(y(x)^2 - 5sin(x), x)`

Compute: $$\frac{d}{dx} (y(x)^{2}-5\ sin(x))$$

Result:
$$(-5)\ cos(x)+2\ \frac{d}{dx} y(x)\ y(x)$$

$$\frac{d}{dx} (y(x)^{2}-5\ sin(x)) == (-5)\ cos(x)+2\ \frac{d}{dx} y(x)\ y(x)$$




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