MathIsimple

Quadratic Equations

Learn to solve quadratic equations using factoring, the quadratic formula, and other methods.

8th Grade
Algebra
~45 min
🎮 Interactive Activity: Quadratic Solver

Solve quadratic equations using the quadratic formula!

1x² + -5x + +6 = 0
🎮 Interactive Activity: Factoring Practice

Factor quadratic expressions!

x² + -5x + +6
1. What is a Quadratic Equation?

📚 Quadratic Equation Definition

A quadratic equation is a polynomial equation of degree 2. The highest power of the variable is 2.

ax² + bx + c = 0

• a, b, c are constants (a ≠ 0)

• x is the variable

• The equation has at most 2 solutions

2. Solving Methods
3. The Quadratic Formula
4. The Discriminant
5. Real-World Applications
6. Worked Examples
7. Frequently Asked Questions

Practice Time!

Practice Quiz
10
Questions
0
Correct
0%
Score
1
What is the standard form of a quadratic equation?
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2
What is the quadratic formula?
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3
Solve: x² - 5x + 6 = 0
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4
What is the discriminant of x² + 4x + 4 = 0?
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5
If discriminant > 0, how many real solutions?
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6
Factor: x² - 9
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7
Solve: 2x² - 8 = 0
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8
What does it mean if discriminant < 0?
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9
Factor: x² + 7x + 12
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10
What is the solution to x² = 25?
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