$\lim_{x\to0}\frac{\tan\left(x\right)-x}{x^2\tan\left(x\right)}$
$2^x-\left(17\cdot2^{x+1}\right)=7$
$\frac{d}{dx}x^2y^3+4xy+x-6y^2$
$y=x^{\sqrt[3]{4x}}$
$\int\frac{\left(3x-2\right)}{5x^2-3x+2}dx$
$\int\left(100+x^2\right)^{-4}dx$
$3-\left(-1-1\right)$
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