$25x^2-8x+64$
$m^2+3m+12$
$\left(+6\right)\::\:\left[\left(-30\right)\::\:\left(-15\right)\right]$
$\ln3+\ln x=9$
$\int\frac{sec\left(2x\right)\:\tan\left(2x\right)}{\left(1+\sec\left(2x\right)\right)^{\frac{3}{2}}}dx$
$81x^4-121y^6$
$\left(x-1\right)+\left(x-2\right)+\left(x+3\right)+\left(x+4\right)$
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