$25x^2-49$
$2x+5+x+2+2x+5+x+2$
$\left(2-\frac{x}{4}\right)^n$
$2x^{2}y\frac{dy}{dx}+y^{2}=2$
$\sqrt[3]{\frac{64a^5b^{12}}{27a^{14}b^5}}$
$\:\lim_{x\to\:-4\:}\frac{x^2-16}{x^2+4x}\:$
$g^2+8g+16$
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