$\int\left(7x-3\right)\left(x-7\right)^2dx$
$\int\frac{1}{3\sqrt{16-25x^2}}dx$
$\frac{x-29}{x^2-3x-4}$
$\cot\left(x\right)\:+\:\cos\left(x\right)\:=\:2\cot\left(\:x\right)\:.\:\left(\frac{1\:+\:sen\:\left(x\right)}{2}\right)$
$2z^2+8z-24=0$
$2x+\left(x+4\right)\left(x+1\right)=9$
$\frac{dy}{dx}=51yx^{16}$
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