$\left(r-5\right)\left(r+11\right)$
$x^4+x^3-11x^2+x-12$
$2x^2+40x+150$
$\int\left(\frac{lnx}{3x}\right)dx$
$\int\left(2x^2+5\right)^2\left(4x\right)dx$
$-17\sin\left(x\right)=0$
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