Factor the expression completely over the complex numbers. x^4−81

Consider the expression

First, note that and Then use formula

Thus,

Now, use the same formula for

and

At last

step-by-step explanation:

from the graph attached below:

domain of graph is the value of x for which the given function profit function p(x) is defined.

(a) the domain represents the number of years for which the outlet will earn a profit.

range of profit function defines the lowest to highest value of profit earned.

(b) the range of this function is (0 , 160 ). for this function, the range represents the outlet's profit earned.

b

step-by-step explanation: