Algebra · Classes 9, 10, 11
Quadratic Roots
Find roots of ax²+bx+c=0, a ≠ 0.
FORMULA
\(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)
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Enter values to see a result and calculation steps.
Worked example
x²−5x+6=0 ⇒ x=2 or 3
Understand this formula
Find roots of ax²+bx+c=0, a ≠ 0.
Check measurement units, mathematical domains and rounding before applying any result in an examination.