$2\log\left(x\right)-\log\left(a+b\right)-\frac{1}{2}\log\left(a+bx\right)$

$\lim_{x\to0}\left(3x^2-2x+5\right)$

$\frac{dy}{dx}\left(\frac{\left(1+e^3\right)\left(1+x\right)}{x^2+cos\left(x\right)}\right)$

$\lim_{x\to\infty}\sqrt{\frac{2x^2-5x^2+4x-6}{6x^3+2x}}$

$\left(a^3-3b^4\right)^3$

$-4\left(2a-1\right)+2$

$\left(6-4x\right)^4$