$\frac{dy}{dx}\left(\cos\left(x\right)\left(y\right)\right)=y$

$3\cdot3+24$

$-3x^3+5x^2+5x$

$2x+3x^2-7x+x^2-5+8^2-1$

$\int\left(x^3\right)\sqrt{2x^2+1+x^4}dx$

$\frac{d}{dx}\left(\left(x+y\right)^3+\left(x-y\right)^3=x^4+y^4\right)$

$\:+\:2x,\:para\:m\:=\:4\:e\:x\:=\:-7$