$\left(5x-46m\right)^2$
$-3-6+5-2+5-4+1+5-8+9-7+2-+7-1$
$y^2=2y+15$
$8=2+u$
$sin2x-1=0$
$\lim_{x\to\infty}\left(9xe^{\frac{1}{x}}-9\right)$
$9a^2\:-b^2$
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