$m-2+m+2m+m+\frac{5}{7}+m+\frac{5}{7}+2m-5$
$-3x+16+20x$
$3^2+13x-2$
$x^2-x-20\ge0$
$\int_0^{\infty}\left(\frac{1}{\sqrt{2+x^2}}\right)dx$
$25x^2-20x+1$
$-7x+5\left(1-8x\right)$
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