$\lim_{x\to\infty}\left(\sqrt{x^2+4x+9}-x\:\right)$
$5x+3\left(x+4\right)=28$
$\left(\frac{1}{2}m+\frac{3}{4}n\right)^2$
$1^0+9^0-2^0+5^0+1^0+1-1^0$
$\left(2x-1\right)\left(y+3\right)$
$\int_0^1\left(\frac{1}{x^2}\right)dx$
$2\cdot10^{5}$
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