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For a quadratic equation ax2+bx+c=0ax^2+bx+c=0ax2+bx+c=0, the discriminant is given by the expression [...]\text{[...]}[...].

A

The discriminant comes from the part of the quadratic formula b2−4ac\boxed{\sqrt{b^2-4ac}}b2−4ac​​; if this value is negative, the roots are not real.

B

000

C

Δ<0\Delta < 0Δ<0

D

For a quadratic equation ax2+bx+c=0ax^2+bx+c=0ax2+bx+c=0, the discriminant is given by the expression b2−4ac\boxed{b^2-4ac}b2−4ac​.

Card 1 of 20

2.4 The Discriminant Flashcards

  1. A Level
  2. /Maths
  3. /2.4 The Discriminant

20 flashcards on Edexcel A Level Maths 2.4 The Discriminant: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards