$$5m+m^2-1$$

$$\int\frac{26u-34-2u^2}{\left(u-2\right)^3\left(2u+1\right)^2}dx$$

$$64x^2-70x+25$$

$$\sqrt[3]{-8a^3b^6x^{12}}$$

$$\left(-75+42\right):\:\left(-16\:+5\right)\:-15$$

$$\int_0^{\frac{\pi}{2}}\left(x\sin\left(4x\right)\right)dx$$

$$\frac{senx}{tanx}+tanx$$