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

$$\sqrt{xy}\sqrt{x^3y^5}\sqrt{xy^3}$$

$$\int\left(\frac{11\ln\left(x\right)}{x\sqrt{\left(\ln\left(x\right)\right)^2}}\right)dx$$

$$z49z=5$$

$$1-\frac{sin^2x}{1+cos^2x}=cos\:x$$

$$9y^2+72y$$

$$9x^2-3x-5-5x-9$$