Learn how to find the real zero of a cubic function

Why is it important to set equations equal to zero?

• To simplify the equation

• To find the roots of the equation

• To make the equation linear

• To eliminate variables

In the given problem, how many 'X's are explicitly written?

• Three

• Two

• One

• None

What is the first step in applying inverse operations to solve the equation?

• Multiply both sides by a constant

• Add or subtract to isolate the variable

• Take the square root

• Divide by the coefficient of the variable

What operation is used to eliminate the cubing of a variable?

• Square root

• Cube root

• Addition

• Subtraction

Why is there no need for a plus or minus sign when taking the cube root?

• Cube roots are always positive

• Cube roots can only be negative

• Cube roots are undefined

• Cube roots can be either positive or negative, but not both