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Most Important Selected Qs for JEE AdvancedMathematicsQuadratic Equation

Let a, b, c R . If a x^2+b x+c=0 have one root -1 and other root 1 , then

Options

  1. A1- b a + c a 0
  2. B1+ b a + c a 0
  3. C1- | b a |+ c a 0
  4. D1- | b a |+ c a 0

Correct answer

D. 1- | b a |+ c a 0

Step-by-step solution

aligned & f(x)=x^2+ b a x+ c a & f(-1) 0 & f(1) 0 aligned

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