$\sqrt{\left(a^2+b^2\right)}^2\:-\left(2ab\right)^2$

$( x ^ { + } - 7 x ^ { 20 } ) ^ { 2 }$

$5p^2-p^2$

$\int_{-1}^1\left(4x+2\right)dx$

$6yz\:-3z\:5y\:-\frac{1}{3}yz$

$\frac{\left(\tan\:323-\tan\:8\right)}{\left(1+\tan\:323\tan\:8\right)}$

$ln\left(x\right)^2=ln\:\left(x\right)^4$