$12x^5y^4+9x^4y^3-6x^3y^2$

$\left(x^4-27x\right)\left(x^4+2x\right)$

$4x-3y=-1$

$\int\left(x^2-2x+3\right)\left(\cos\left(3x\right)+\sin\left(3x\right)\right)dx$

$\int_0^{\pi}\left(\sin\left(0.6x\right)\right)dx$

$17w-14z+12w-3z$

$\frac{dy}{dw}=y\left(4w^3+1\right)$