$\left(a+j\right)^2$

$\int\left(\left(9x^2-4x+1\right)\left(9x^3-6x^2+3x-36\right)^7\right)dx$

$\int b ^ { 4 x } d x$

$\sec^2\left(x\right)cosec^2\left(x\right)=\tan^2\left(x\right)+\cot^2\left(x\right)+2$

$\left(x+\frac{1}{3}\right)\cdot\left(x-\frac{1}{3}\right)$

$3x+1\le5x+7$

$x p 1 + 2 ^ { x }$