The volume of a sphere refers to the number of cubic units that will exactly fill a sphere. The volume of a sphere can be found or calculate by using the formula V=4/3πr^3, where r represents the radius of the figure.
In this exercise is given the radius of the sphere and it is asked to find it's volume. The first step to find the volume of the sphere will be the substitution of the values into the previous mention formula.
V=4/3πr^3 V=4/3π(12)^3 V=4/3π(1728) V=2304π units^3 or 7238.23 cubic units
The volume of the sphere is 2304π units^3 or 7238.23 cubic units.
Multiplying a(x) and b(x) together results in a quadratic equation (a trinomial). This trinomial looks like (a·b)(x) = (2)(x - 2)(x + 2). Note that this is a "special product;" (2)(x^2 - 4); there is no middle term.
