$2\left(4w-5\right)-2\left(w-7\right)$
$9j+4j$
$\frac{5m^4+625}{m+5}$
$-4-7-3-4-5-8$
$2a+3b+5a-5b$
$\int_{\sqrt{1.8^2-y^2}}^{\frac{-4}{27}y^2+3}\left(x\right)dx$
$\sec^2x=9$
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