# Mini-Quiz: Quadratic Equations

by Ron Kurtus (updated 18 January 2022)

Take this Mini-Quiz to check your understanding of the lesson material.

1. Which of the following is a quadratic equation?

x2 + x − 3

2x2 − 2x + 5 = 0

5x2 − 5x2 + x + 7 = 0

2. What is the proper format for the quadratic equation −x2 + 0.2x − 3 = 0?

10x2 − 2x + 30 = 0

−x2 + 0.2x − 3 = 0

x2 − 2x + 30 = 0

3. What are the solutions to the quadratic equation x2 − 9 = 0?

x = 3

x = 9

x = 3 and x = −3

If you got all three correct, you are on your way to becoming a Champion in Algebra. If you had problems, you had better look over the material again.

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Quadratic Equations - The MathPage/com

Quadratic Equations - MathIsFun.com

Quadratic equation - Wikipedia

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