$\left(5x^7y^4-2x^5y^3\right)^2$

$2x+3\left(x-1\right)=3x+11$

$36q-0.2q^2-1.6q+134.4$

$\lim_{x\to1}\left(\frac{\ln\left(x\right)-2x+2}{x^4-3x^2+2}\right)$

$\left(x^2-2y^3+2z^4-8\right)-\left(-17+x^2-2y^3+3z^4\right)$

$-5+8z+24-17y$

$\lim_{y\to2}\left(y^2-4\right)\left(y-2\right)$