$\log_{15}\left(6-4v\right)=\log_{15}\left(5-5v\right)$

$63x^4y^4+84x^3y^3$

$sin2x+\sqrt{2}cosx=0$

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

$\left(8f-5\right)\left(5f+1\right)=0$

$\int_0^1\left(-1+\frac{3\pi}{4}e^x\right)dx$

$\frac{25}{48}+\infty$