$$\left(\frac{1}{3}y\right)\left(\frac{1}{3}y\right)$$

$$\int\left(\frac{1}{\left(x^2-2x-5\right)^2}\right)dx$$

$$r^2-12r+27$$

$$50-50\left[3-3\left(4-4\cdot2\right)-5+5\cdot2\right]$$

$$\int3x^2\cos\left(x^3\right)-2\sin\left(x\right)dx$$

$$22\cdot20$$

$$25x-100^4$$