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AP EAMCET202124 Aug 2021Evening ShiftMathematicsQuadratic EquationActual

For the equation x^2-5|x|-14=0

Options

  1. Aall roots are real
  2. Ball the roots are imaginary
  3. Ctwo roots are real
  4. Dno real roots

Correct answer

A. all roots are real

Step-by-step solution

Given, x^2-5|x|-14=0 array ll & |x|^2-5|x|-14=0 & (|x|-7)(|x|+2)=0 array =|x|=7,|x| -2 All roots are real.

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