$-12b^4,6b^3,-2b^4$

$\left(6\:+\:m\:\right)^2$

$0.36=\frac{\sin\left(x\right)+0.22\cos\left(x\right)}{\cos\left(x\right)-0.22\sin\left(0\right)}$

$\frac{dy}{dx}=\left(1+y\right)\tan\left(x\right)$

$b^2+30b$

$5\:\cos^4\:\theta\:-\:5\:sin^4\:\theta\:=\:5\:cos\:\theta$

$x\frac{dy}{dx}+2y=\frac{cox\left(x\right)}{x}$