Solve the quadratic equation $7x+3\left(x^2-5\right)=x-3$

Find the derivative

$\frac{d}{dx}\left(2x-1\cdot 4\cdot \ln\left(x+2\right)\right)$

Find the derivative

$\frac{d}{dx}\left(\sqrt{x}\ln\left(x\right)\right)$

Find the derivative

$\frac{d}{dx}\left(\cos\left(x\right)\right)\cdot \csc\left(x\right)$

Find the derivative

$\frac{d}{dx}\left(\pi100^2=0\right)$

Find the derivative

$\frac{d}{dx}\left(x\cdot \left(x^2+1\right)\right)$

Find the derivative

$\frac{d}{dx}\left(x\cdot \tan\left(y\right)\right)$

Find the derivative

$\frac{d}{dx}\left(\left(2-x\right)^3\left(1-x^2\right)^2\right)$