Solve this problem please

The simplest form of the given problem is  

Step-by-step explanation:

Given,

To find its simplified form.

First we will factorize by middle term factor formula.

Now,

=

= x(x+2)-1(x+2)

= (x+2)(x-1)

Putting this value into given problem we get,

= [ eliminating (x+2)]

=

This is the simplest form.

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !