Quadratic Equations
Factorisation, quadratic formula, and discriminant (NCERT Ch. 4).
3 topics • Notes • Practice • AI explanations available
1. Factorisation
Solving ax²+bx+c=0 by splitting the middle term and factorisation.
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2. Quadratic Formula
Deriving and applying x = (−b ± √(b²−4ac)) / 2a. Cash flow, break-even points, and unit economics are common real-world applications of quadratic equations.
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3. Discriminant
Nature of roots using D = b² − 4ac.
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