$\left(2b^3-4b^5\right)^3$
$24+3^2+7^3+2$
$-11b^5+3b^5-2b^5$
$x^6+3x^5-4x^4-x^3+11x^2-6$
$x^2+2x=-1$
$cos^3x\left(1+tg^2x\right)-\left(1-sen^2x\right).secx$
$4x-6=3-5x$
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