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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 two roots of x^3 - ax^2 + bx - c = 0 are equal in magnitude but...

If two roots of x3−ax2+bx−c=0x^3 - ax^2 + bx - c = 0 are equal in magnitude but opposite in sign. Then:

Options

  1. Aa+bc=0a+bc = 0
  2. Ba2=bca^2 = bc
  3. Cab=cab = c
  4. Da−b+c=0a-b+c=0.

Correct answer

C. ab=cab = c

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