$y=\ln\left(\frac{6x-5}{x\sqrt[7]{x^2+1}}\right)$

$x1\:\left(-\frac{\sqrt{15}}{4}\left(0\right)\right)$

$\frac{d}{dx}\left(\left(sinxy^2\right)\right)=x^22y^2$

$\frac{2a^4-9a-7+3a^2}{2a+a^2-1}$

$\int\frac{y}{\left(y^2+16\right)}dx$

$4p+3q+7p-9q-q-p$

$m^2+7+49$