🟰 Free study tool
Equation Solver
Solve linear and quadratic equations step by step — with discriminant and the quadratic formula.
Examples:
Handles linear and quadratic equations (degree ≤ 2) in x. Write the equation with “=”, e.g. 2x + 3 = 7.
How it's solved
- 1. Tidy up: move everything to one side (… = 0).
- Linear (ax + b = 0): solve for x → x = −b/a.
- Quadratic (ax² + bx + c = 0): discriminant D = b² − 4ac.
- Quadratic formula: x = (−b ± √D) / (2a).