$-4m-6m-30=-80$
$3mn^2+5m^2n^210m^3n^2$
$\cot^2\left(x\right)\csc\left(x\right)-\cot^2\left(x\right)=\cot^4\left(x\right)$
$-2+3.350$
$\int\frac{1}{\sqrt[7]{x}}dx$
$x^2y^4-100$
$\int x\:seng\:x\:dx$
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