$76-43-54+87+91$
$\sqrt{3x^2}+2x$
$x+\sin^2y=2$
$36x^2-16$
$\frac{x^3}{x^{-1}.x^5}$
$4-10p+25p^2$
$\lim_{x\to-2}\left(3-x\right)^2$
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