learn.howToCalculate
learn.whatIsHeading
Completing the square is an algebraic technique that converts a quadratic expression into perfect square form. It's used to solve quadratics and rewrite parabola equations in vertex form.
Formule
ax² + bx + c = a(x + b/2a)² + (c - b²/4a)
Stapsgewijze handleiding
- 1Identify coefficients a, b, c
- 2Move constant to the right side
- 3Add (b/2a)² to both sides to complete the square
Uitgewerkte voorbeelden
Invoer
x² + 6x + 5 = 0
Resultaat
(x + 3)² = 4 → x = -1 or x = -5
Completing the square yields vertex form
Veelgemaakte fouten om te vermijden
- ✕Forgetting the a coefficient when factoring out
- ✕Adding wrong value to complete the square
Klaar om te berekenen? Probeer de gratis Completing the Square Solver-rekenmachine
Probeer het zelf →