$-7\cdot\frac{6}{-6}$
$7\log\left(10\right)x=7$
$-4+2+-1$
$\left(10y-\frac{1}{22}\right)^2$
$x\left(x^2\:-4x+5\right)$
$x+4^2+1$
$\lim_{x\to1}\left(\frac{2x^3-2x}{x-3}\right)$
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