Quadratic Formula

x=b±b24ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

Description

Solves quadratic equations of the form ax² + bx + c = 0.

Variables

Symbol Meaning
a Coefficient of x²
b Coefficient of x
c Constant term

Example

Problem

Solve 2x² + 5x - 3 = 0

Solution

x = (-5 ± √49)/4 = 0.5 or -3

Real-World Applications

  • Physics projectile motion
  • Engineering optimization
  • Economics