How to find the real zero of a cubic function

The video tutorial explains how to find the zeros of a cubic equation by setting it to zero and solving for the variable using inverse operations. The teacher discusses the concept of variables and demonstrates solving the equation step-by-step, including taking the cube root. The tutorial concludes with analyzing the graph to identify the real X intercept, acknowledging the presence of imaginary solutions.

What is the first step in finding the zeros of a polynomial equation?

• Set the equation equal to zero

• Graph the equation

• Factor the equation

• Use synthetic division

When is it appropriate to use techniques like factoring or synthetic division?

• When the equation is quadratic

• When the equation is already solved

• When the equation is linear

• When there is more than one variable

How many variables are present in the given equation?

• One

• Two

• Three

• None

What operation is used to solve for the variable when it is cubed?

• Dividing by three

• Multiplying by three

• Squaring the variable

• Taking the cube root

What is the real X intercept found in the graph?

• X = 1

• X = 3

• X = 0

• X = 4