$\lim_{x\to2}\left(\frac{5x^2+15x+10}{x^2-4x+4}\right)$
$\frac{0^2}{2}+ln0-\frac{1}{2}$
$\lim_{x\to-\infty}\left(x^3-x^2\right)$
$x^2+z^2-x^2+2yz-2z$
$-14=x-11$
$x=2b^{\frac{1}{2}}\left(\frac{1}{2}-b\right)^{\frac{1}{2}}+\left(\frac{1}{2}b\right)^{\frac{1}{3}};\:a=0;\:b=\frac{1}{4};\:c=\frac{2}{3};\:d=\frac{1}{2};\:e=4;\:f=3$
$\left(8x^3-10\right)\left(8x^3-18\right)$
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