$2x+a-\left(x-2a\right)+\left(2x-a\right)$
$\left(-1-\frac{1}{b^3}\right)^5$
$2h^2-5h=-1$
$y'=x\cdot y+1$
$\left(3g^4\right)^4$
$8m+2=10m-10$
$3\:ln\:4\:=\:2\:ln\:x$
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