$\sqrt{5\cdot\square-1}=7$
$c^2+10c+25$
$\int\frac{2}{sec\:x}\:\:dx$
$3.50\cdot160$
$\left(2m^2n-3x^3\right)^3$
$-\sqrt[4]{625}$
$4tx\:\frac{dx}{dt}=x^2+1$
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