$x=2sec\left(y\right)$
$x^2+18x+68=0$
$5689+256$
$\left(3\right)^2\left(3\frac{0}{3}\right)$
$\left(7a+8\right)\left(7a-8\right)$
$\int\frac{6x^3+4x^2+42x+6}{x^4+12x^2+27}dw$
$\left(\sqrt{2}+2\right)\:x\:\left(\sqrt{2}-2\right)$
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