Could some one check my answer for making an equation for a parallel line and tell me if it is right

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

What are “like terms”? why can we only add like terms?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap