$8z+12+3$

$y=\frac{\sqrt{2x+3}\left(2x+3\right)}{2}$

$xy'-3y=x^4cosx$

$\frac{x-5}{\left(x+3\right)\sqrt{2x-10}}$

$k-2k+1+6+k$

$f\left(x\right)=\ln\:\left[\left(\frac{3}{5}x^3+8x^2\right)\left(4x^3+6\sqrt[7]{x}\right)\right]$

$\left(2x^2-9\right)\left(2x^2p-18\right)$