learn.howToCalculate
learn.whatIsHeading
Quadratic inequalities involve quadratic expressions with inequality signs (>, <, ≥, ≤). Solutions are intervals on the number line where the inequality holds true.
Formel
ax² + bx + c > 0 (or <, ≥, ≤); solve roots and test intervals
Trin-for-trin guide
- 1Find roots of ax² + bx + c = 0
- 2Test intervals between roots to determine sign
- 3Write solution as union of intervals
Løste eksempler
Input
x² - 5x + 6 > 0
Resultat
x < 2 or x > 3
(x-2)(x-3) > 0
Almindelige fejl at undgå
- ✕Forgetting to flip inequality when multiplying by negatives
- ✕Misidentifying test intervals
Klar til at beregne? Prøv den gratis Quadratic Inequality Solver-beregner
Prøv det selv →