Showing topic: Solving quadratic equations by factorisation
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Question
State the formula for: Discriminant
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Answer
Equation:
Δ=b2−4ac
Where:
\Delta: discriminant
a: coefficient of x^2 (a ≠ 0)
b: coefficient of x
c: constant term
Note: Determines the nature of the roots of a quadratic equation ax^2 + bx + c = 0. If Δ > 0, two distinct real roots; if Δ = 0, two equal real roots; if Δ < 0, no real roots.
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Solving quadratic equations by factorisation
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