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COMEDK2013MathematicsQuadratic Equation

The number of solutions for the equation x²-5|x|+6=0 is

Options

  1. A4
  2. B3
  3. C2
  4. D1

Correct answer

A. 4

Step-by-step solution

We have, aligned x²-5|x|+6 &=0 |x|²-5|x|+6 &=0 (|x|-3)(|x|-2) &=0 |x| &=3,2 x &= 3, 2 & Number of solution is 4 . aligned

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