Use the x-intercept method to find all real solutions of the equation.
x^3-11x^2+31x-21=0

c.

Step-by-step explanation:

The given equation is

To find all real solutions using the x-intercept method, we to graph the corresponding function using a graphing tool.

The corresponding function is;

From the graph the x-intercepts are

(1,0),(3,0) and (7,0).

Therefore the real solutions are

answer: need picture of problem

step-by-step explanation:

40 minutes

step-by-step explanation:

add the time and multiply by 2