$\int\frac{\frac{2}{5}x-\frac{1}{3}}{\left(x^2-4x+5\right)^2}dx$
$\left(7x-4y^2\right)\left(7x+4y^2\right)$
$-7\:+\:9\:\cdot\:-3\:+\:1$
$\int-\frac{sec^2\left(2x\right)sin\left(2x\right)}{2}\:dx$
$5\left(x-3\right)^2+\left(x+3\right)^2$
$18x^3-12x^2+8x$
$9+4+12+5-1+8-1$
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