Quadratic Formula Calculator

Solve quadratic equations instantly using the quadratic formula.

Quadratic Formula Calculator

Solve ax² + bx + c = 0 using the quadratic formula.

Quadratic Formula:

x = (-b ± √(b² - 4ac)) / (2a)

Where a, b, and c are coefficients of ax² + bx + c = 0

Common Examples

x² - 5x + 6 = 0
a=1, b=-5, c=6
Try
x² - 4 = 0
a=1, b=0, c=-4
Try
x² + 2x + 1 = 0
a=1, b=2, c=1
Try
2x² + 4x + 1 = 0
a=2, b=4, c=1
Try
x² + 1 = 0
a=1, b=0, c=1
Try

Quadratic Formula Calculator

The quadratic formula is a fundamental mathematical tool used to solve quadratic equations in the form ax² + bx + c = 0. This calculator provides instant solutions with step-by-step explanations, making it perfect for students, educators, and professionals.

The calculator uses the standard quadratic formula: x = (-b ± √(b² - 4ac)) / (2a) to find the roots of any quadratic equation.

Why Use a Quadratic Formula Calculator?

Quadratic equations are essential for:

  • Physics and motion problems
  • Engineering calculations
  • Economics and finance
  • Architecture and design
  • Computer graphics
  • Mathematical modeling
  • Educational purposes
  • Scientific research

How Does the Calculator Work?

  1. Enter the coefficients a, b, and c from your quadratic equation.
  2. The calculator calculates the discriminant (b² - 4ac).
  3. Based on the discriminant, it determines the nature of the roots.
  4. Uses the quadratic formula to find the exact solutions.

The tool provides step-by-step solutions and handles all types of quadratic equations.

Key Features

  • Instant Calculation: Real-time results as you enter coefficients.
  • Step-by-Step Solutions: Detailed explanations of the solving process.
  • Multiple Root Types: Handles real roots, repeated roots, and complex roots.
  • User-Friendly Interface: Clean, intuitive design that works on all devices.
  • Common Examples: Quick access to frequently used equations.
  • Copy Functionality: Easy copying of results for use in other applications.

Who Can Benefit?

  • Mathematics students and educators
  • Physics and engineering students
  • Scientists and researchers
  • Architects and designers
  • Anyone working with mathematical modeling

Practical Applications

  • Physics and motion problems
  • Engineering calculations
  • Economics and finance
  • Architecture and design
  • Computer graphics
  • Mathematical modeling
  • Educational purposes
  • Scientific research

Frequently Asked Questions

What is the quadratic formula?

The quadratic formula is x = (-b ± √(b² - 4ac)) / (2a), used to solve quadratic equations in the form ax² + bx + c = 0.

What does the discriminant tell us?

The discriminant (b² - 4ac) determines the nature of the roots: if positive, there are two real roots; if zero, one real root; if negative, two complex roots.

Can coefficient "a" be zero?

No, coefficient "a" cannot be zero because that would make it a linear equation (bx + c = 0), not a quadratic equation.

What are complex roots?

Complex roots occur when the discriminant is negative. They involve imaginary numbers (i = √-1) and appear as conjugate pairs.

Is my data saved or shared?

No, your calculations are never saved or shared. All processing happens in your browser for maximum privacy and security.

Can I use this tool on mobile devices?

Absolutely! This calculator is fully responsive and works seamlessly on smartphones, tablets, and desktops.

What are some real-world applications?

Quadratic equations are used in physics (projectile motion), engineering (structural analysis), economics (profit maximization), and many other fields.

Quick Tips

  • • Coefficient "a" cannot be zero
  • • Discriminant determines root type
  • • Positive discriminant = 2 real roots
  • • Zero discriminant = 1 repeated root
  • • Negative discriminant = 2 complex roots
App screenshot

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