$$\left(-5x^2-3x+1\right)-\left(-x^2-4x+4\right)$$

$$\int2^{6x^{10}}x^9dx$$

$$\frac{5}{3\sqrt{x}}$$

$$f\left(x\right)=\frac{x^{20}}{\left(x+4\right)^2}$$

$$3.1-0.7$$

$$x^{\frac{2}{3}}+\frac{25}{576x^{\frac{2}{3}}}+\frac{5}{12}$$

$$\log\left(x\right)+\log\left(x-1\right)=\log\left(12\right)$$