$\int\frac{ln\left(x\right)^2}{6x^2}dx$

$\frac{sin\left(\frac{\pi}{3}\right)}{cos\left(\frac{\pi}{4}\right)}$

$9x^2+36y^2+18x+144y+153$

$\left(6.67+1.2\right).2.23$

$-2\left(-1\right)^3+\left(-1\right)^2-3\left(-1\right)+7$

$\left(1+x\right)\tan\left(y\right)\frac{dy}{dx}=x$

$x^4+16x^2+16$