$\frac{d}{dy}2x^2-3y-4$
$-16x^2+64x$
$\left(10xy-2ab\right)^2$
$f\left(x\right)=\:\tan\pi x$
$-3z+2-9z+1$
$\left(4x^5+7y^3\right)^3$
$5x-7\le7x-1$
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