$\frac{a^{2x+2}-100}{a^{x+1}-10}$
$\left(t+2\right)^2$
$xy+4y=x^3-x$
$\left(a^2+8\right)\left(a^2-1\right)$
$x-\sqrt{x+7}-5=0$
$27-2,3-3,45-5,321-2,345-19+2,36+3,01$
$-\frac{8}{1}$
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