$$x^9-29x^7+100x^5$$

$$xy+xy^2+x^3y=7y^2$$

$$x^2+5y+2+2x^2+28x^3+x+10yx^2+7x$$

$$\sqrt{8m}+2\sqrt{24}-5\sqrt{18m}-5\sqrt{6m}$$

$$3\lim_{x\to45}\frac{3-3\tan\left(x\right)}{\cos\left(x\right)-\sin\left(x\right)}$$

$$x^2+6<7x$$

$$\int x\cdot\left(3x-1\right)^{11}dx$$