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Black Advanced Problems in Mathematics
Exam
Black Advanced Problems in Mathematics
Subject
Mathematics
Chapter
Quadratic Equation

Black Advanced Problems in Mathematics · Mathematics · Quadratic Equation

If λ_1, λ_2 (λ_1 > λ_2) are two values of λ for which the...

If λ1,λ2(λ1>λ2)\lambda_1, \lambda_2 (\lambda_1 > \lambda_2) are two values of λ\lambda for which the expression f(x,y)=x2+λxy+y2−5x−7y+6f(x, y) = x^2 + \lambda xy + y^2 - 5x - 7y + 6 can be resolved as a product of two linear factors, then the value of 3λ1+2λ23\lambda_1 + 2\lambda_2 is :

Options

  1. A5
  2. B10
  3. C15
  4. D20.

Correct answer

C. 15

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