$5x=10.\left(4x-2\right)$

$\log\left(x\right)+\log\left(y\right)-\log\left(z\right)$

$3\cdot2^2-2$

$\frac{\left(1+\cos\left(x\right)\right)}{\sin\left(x\right)}+\tan\left(x\right)=\frac{\left(1+\cos\left(x\right)\right)}{\sin\left(x\right)\cdot\cos\left(x\right)}$

$\left(x+y-3\right)dx+\left(x+y+4\right)dy=0$

$\int\left(x-3\right)e^{4x}dx$

$14x^4y^5\left(-13xy^3\right)$