$\int\frac{1}{\left(x^2-2x+5\right)}dx$
$\int\frac{x}{\left(16+x^2\right)^3}dx$
$-90\cdot40$
$x^2+\:55x\:+336$
$\left(12x^4-9x^2+4x+5\right)-\left(-2x^2+8-6x^5\right)$
$20\sin\left(b\right)^2+4\sin\left(b\right)-7=0$
$\left(4m^5-5n^6\right)^2$
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