$4+3\cdot5\cdot\left(2+3\right)-7+4\left(1-3\right)$
$\left(x^{-3}\right)^5$
$17b+5-\left(-3b\right)$
$-x^0.x=-4$
$csc^2\left(x\right)-cos^2\left(x\right)\cdot sec^2\left(x\right)$
$6\left(3x\:-\:1\right)\:=\:-24$
$86.0-128.5-213.8$
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