$p^{2}\cdotp\cdotp^{3}$

$\log\left(5-3x\right)=\log\left(4x-9\right)$

$\left(-u+3\right)\left(-u-7\right)$

$\left(6x^4+5\right)\left(6x^4-7\right)$

$\int_{20}^{x^2}\left(e^{t^2}\right)dx$

$x-3\le12$

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