$$\int\left(4x^2+1\right)^3\:.\:8x\:dx$$

$$4xydy=\left(y^2+1\right)dx$$

$$-a^{2}b+\sqrt[3]{a^{2}b}$$

$$25x^2-20xy$$

$$\frac{5}{9}ab^3-2a^3b-1b^3a+8a^3b$$

$$-41.1\:+\:22,1$$

$$\left(4x^2-1\right)\left(7-x^2\right)$$