$4sen^2a-8sena+3=0$
$42^{2^{-7^0}}$
$y^2-y=e^x$
$\int\frac{\sqrt{1+x}+1}{\sqrt{1+x}-1}dx$
$\int\frac{x+3}{x^3+x^2-2x}dx$
$x+2=\left(10-x\right)^2$
$\left(3w^2+5d^5\right)^2$
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