$2x^2-5x+5=0$
$0.2\cdot2$
$\frac{7^2}{7^{-2}}$
$\sin\left(\pi+x\right)+\cos\left(0.5\pi-x\right)+\tan\left(0.5\pi+x\right)$
$-1-9-10$
$\log\left(3n+4\right)=2$
$\int_{0}^{2}z^{3}\sqrt{z^{2}+4}dz$
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