$\left(2x^2-3y^8\right)^2$

$5k\:+\:10\:=\:2\:+\:k$

$\int\frac{x^2}{\left(4x+1\right)^{\frac{5}{2}}}dx$

$sin^2x=-\frac{12}{13}$

$49x^2-14x+9$

$\log\left(5x-1\right)=\log\left(x+2\right)+\log\left(6\right)$

$\sqrt{3}\cdot\:\cos\:^2\left(x\right)-\frac{3}{2}\cos\:\left(x\right)=0$