$\lim_{x\to0}\left(\frac{\ln\left(x\right)^2}{x^2-1}\right)$

$8x^8-6x^4-14$

$169x^5+26x^{10}y-65xy$

$6\log\left(w\right)-.5\log\left(z\right)+7\log\left(x\right)$

$20:\left(15-5\right)-\left(3-\left(2+7-1\right)+3\right)$

$\left(x-2\right)^2>\left(x+2\right).\left(x-2\right)+3$

$6.25+4.75$