$\left(\sqrt{x}+4\right)^2\:+\left(\sqrt{x}-4\right)^2$
$\left(2a-2b+2c\right)^2$
$\left(3x-y\right)^2\left(2\right)$
$3\left(2x+5\right)-3\left(4+4x\le7\right)$
$\frac{x^5}{1-x}$
$x^2\:y-3x-5x^2\:y+2x$
$\lim_{x\to infinity}\left(\sqrt[x^2]{x^2+x+1}\right)$
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