$\lim_{x\to4}\left(\frac{x^2-64}{x^2+4x-36}\right)$
$3\left(y+6\right)-4=5\left(-1-3y\right)+1$
$4x^2+2x+4y^2-8y-11=0$
$\left(3+8x\right)\left(3-8x\right)$
$\frac{d^5}{dx^5}\left(\sin\left(2x^2\right)\right)$
$4x-6x^2+x-2$
$\left(g-8m\right)^2$
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