$3x^2-2x-15<0$

$\left(8x^3+3x^2\right)^2$

$\left(x-2\right)^2-x+2+3x^2+12-12x$

$7a^2\left(a\right)$

$f\left(x\right)=\frac{2x-1}{x^2-6x}$

$\frac{\left\{\csc\:\left(x\right)-\cot\:\left(x\right)\cos\:\left(x\right)\right\}}{\tan\left(x\right)}$

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