$\frac{4x+\sin\left(2x\right)}{x}$

$\int\left(3sin-1\right)^4cosxdx$

$\frac{1}{2\:}x^2-7x=18$

$\frac{dy}{dx}=\frac{1}{2\ln\left(10\right)}$

$\int\left(4x^3-6x^2\right)e^{\left(\frac{7x^4}{3}-\frac{14x^3}{3}\right)}dx$

$a-b\:=c+d$

$\int\left(x^3+3x-1\right)^4\left(x^2+1\right)dx$