$22.5\cdot5$

$\left(-2x-5y\right)^2\left(-2x+5y\right)^2$

$\tan^{2}\left(\theta\right)[1-\sin\left(\theta\right)]$

$\frac{dy}{dx}\left(6+cos\left(x\right)\right)^x$

$\left(5x^6\right)^3$

$\log_{x+3}\left(2x+3\right)+\log_{x+3}\left(x+5\right)=2$

$\left(\frac{1}{5}x^2+2\right)\left(\frac{1}{5}x^2+3\right)$