$8x+1=-23$
$\left(x^4\:-\:x^2\right):\left(x\:+\:1\right)\:$
$\left(2x-3\right)^2\le1$
$6\left(x^3+x^2-3\right)-4\left(2x^3-3x^2\right)$
$\left(3-b\right)\:^2$
$\int2\pi x\sqrt{x^2+1}dx$
$6\left(3x+1\right)-14\left(2-4x\right)\ge3\left(-5x-4\right)+49x$
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