$cos^4\left(4x\right)=\frac{9}{16}$
$-\left(-10\right)-70$
$e\cdot\mu^{3}+m^{2}+mv^{2}$
$1.2-2$
$9y^2+30y+25$
$8.6+0.5+9-40-2.2-1.8$
$8m^3-216n^6$
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