How is the processor adding and subtracting radicals similar to that of simplifying expressions with variables

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

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