How to label the roots of a quadratic polynomial, solutions to a quadratic equation, and x-intercepts or roots of a quadratic function.
How to solve an equation with a square root.
How to use the discriminant to know the number and type of solutions to a quadratic.
How to rationalize the denominator when dealing with an imaginary number.
How to define an imaginary number.
How to complete the square.
How to classify different types of real numbers.
How to know which method to use when solving a quadratic equation.