$x^2+2x+35$
$\int\frac{1}{3}\ln\left(x\right)dx$
$3x^2-4x+3;\:x=3$
$13x-\left(-2x\right)+45-\left(-21\right)-7x$
$21xy+63x+9y+27$
$10-2\left(4+3x\right)$
$81,92+67,13+50,38$
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