$\frac{3}{x}-\frac{1}{2}=\frac{12}{x}$

$\frac{3x^2-3x}{2x^3-2x^2}$

$\int x\left(6x+4\right)dx$

$\frac{d}{dx}\left(ln\left(7x\right)\right)^{ln\left(5x\right)}$

$-7\cdot2+-8\cdot5$

$\left(2x^4y^{-\frac{4}{5}}\right)^3\left(8y^2\right)^{\frac{2}{3}}$

$\frac{x^6}{49}-\frac{4a^{10}}{121}$