Home
Class 9
MATHS
If the roots of quadratic equation are e...

If the roots of quadratic equation are equal , then the discriminant of the equation is `"______"`

Text Solution

Verified by Experts

The correct Answer is:
zero
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EXPRESSIONS AND EQUATIONS

    PEARSON IIT JEE FOUNDATION|Exercise Short Ans|27 Videos

  • QUADRATIC EXPRESSIONS AND EQUATIONS

    PEARSON IIT JEE FOUNDATION|Exercise Essay Type Qns|4 Videos

  • QUADRATIC EXPRESSIONS AND EQUATIONS

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|23 Videos

  • PROBABILITY

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 3|8 Videos

  • RATIO, PROPORTION AND VARIATION

    PEARSON IIT JEE FOUNDATION|Exercise Leval 3|10 Videos

Similar Questions

Explore conceptually related problems

If the roots of a quadratic equation are -1 and 3, then the quadratic equation is

Nature of Roots of Quadratic equation

The roots of a quadratic equation are 5 and -2 . Then, the equation is

If the roots of the quadratic equation are (-1)/(2) and 3/2 , then the equation is

If one root of a quadratic equation is 2 + sqrt5 , then find the quadratic equation.

Number of roots the quadratic equation have

The sum of the roots of a quadratic equation is 2 and sum of their cubes is 98 ,then the equation is -

One root of a quadratic equation is 2 and the sum of the roots is 0. then the equation is:

PEARSON IIT JEE FOUNDATION-QUADRATIC EXPRESSIONS AND EQUATIONS-Very Short
  1. For the expression ax^(2)+ 7x + 2 to be quadratic, the possible value ...

    Text Solution

    |

  2. The equation, ax^(2) + bx + c = 0, can be expressed as aalpha^(2) + ba...

    Text Solution

    |

  3. If -3 and 4 are the roots of the equation (x+k) (x-4) =0 , then the va...

    Text Solution

    |

  4. The polynomial, sqrt(3)x^(2) + 2x +1 is a "" expression.

    Text Solution

    |

  5. For the equation 2x^(2) - 3x + 5 = 0 sum of the roots is "".

    Text Solution

    |

  6. The quadratic equation having roots -a,-b is "".

    Text Solution

    |

  7. A quadratic equation whose roots are 2 moe than the roots of the quadr...

    Text Solution

    |

  8. For the expression 7x^(2) + bx +4 to be quadratic , the possible val...

    Text Solution

    |

  9. If (x-2)(x+3) =0 , then the values of x are "".

    Text Solution

    |

  10. The roots of the equation x^(2) + ax + b = 0 are "".

    Text Solution

    |

  11. x = 2 is a roots of the equation x^(2) - 5x + 6 = 0. Is the given sta...

    Text Solution

    |

  12. If the equation 3x^(2) - 2x-3 = 0has roots alpha, and beta then alpha....

    Text Solution

    |

  13. If the discriminant of the equation ax^(2) + bx + c = 0 is greater tha...

    Text Solution

    |

  14. If the roots of a quadratic equation ax^(2) + bx + c are complex, then...

    Text Solution

    |

  15. The roots of a quadratic equation ax^(2) + bx + c=0 are 1 and c/a, th...

    Text Solution

    |

  16. If the roots of quadratic equation are equal , then the discriminant o...

    Text Solution

    |

  17. For what values of b, the roots of x^(2) +bx + 9 =0, are equal ?

    Text Solution

    |

  18. If the sum of the roots of a quadratic equation, is positive and produ...

    Text Solution

    |

  19. If x = 1 is a solution of the quadratic equation ax^(2) - bx + c = 0, ...

    Text Solution

    |