$\left(6\:n\:-\:7\right)\:\left(6\:n\:-30\right)$

$a^2^x+b^x+4a^2^x-2b^x$

$a-5a-35-29$

$\frac{dy}{dx}y=\ln\left(\left(2x^2+5\right)^3\left(\sqrt{4x+3}\right)\right)$

$\int\frac{\sin\left(x\right)}{\sqrt{\left(1-\cos\left(x\right)\right)}}\:dx$

$\frac{12n^2}{4n^3}$

$\frac{x^4}{x^3+2x^2}$