Home
Class 10
MATHS
If x^2-4x+p=0has real roots then...

If `x^2-4x+p=0`has real roots then

A

`Pge5`

B

`Ple-4`

C

`Pge4`

D

`Ple4`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATIONS

    R G PUBLICATION|Exercise EXERCISE|115 Videos

  • PROBABILITY

    R G PUBLICATION|Exercise EXERCISE|91 Videos

  • REAL NUMBERS

    R G PUBLICATION|Exercise EXERCISE|84 Videos

Similar Questions

Explore conceptually related problems

If (a^2+b^2)x^2+2(ac+bd)x+(c^2+d^2)=0 has no real roots then

If -3 is a root of the equation x^2+ px + 6 = 0 and the equation x^2 +px +q = 0 has equal roots, find p,q .

If x^2+2(k+2)x+9k=0 has equal roots then k= a)-1,4 b)1,-4 c)-1,-4 d)1,4

If the equation (a^2+b^2)x^2-2(ac+bd)x+(c^2+d^2)=0 has equal roots, then

For which value of k the quadratic equation (k+4)x^2+(k+1)x+1=0 has equal roots find that value

If - 4 is a root of x^2 + px -4 = 0 and the equation x^2 + px + q = 0 has equal roots find p and q.

If 2 is a root of the equation x^2+px-8 = 0 and the equation x^2 + px + q = 0 has equal roots, find p, q .

Find the nature of the roots of the following quadratic equations. If the real roots exist find them. x^2+x+1=0

If p(x)=ax^2+bx+c has no real zeroes and a+b+c<0,then

Find the nature of the roots of the following quadratic equations.If the real roots exist,find them:(iii) 2x^2-6x+3-0

R G PUBLICATION-QUADRATIC EQUATIONS-EXERCISE
  1. The quadratic equation is a)x(x+1)+8=(x+2)(x-2) b)x^2+1/x^2=5 c)x^2...

    Text Solution

    |

  2. The roots of the quadratic equation x^2+6x+5=0 a)5,-1 b)2,3 c)6,-1 ...

    Text Solution

    |

  3. If ax^2+bx+c=0has equal roots,then,c= a)b/(2a) b)-b/(2a) c)b^2/(4a) d...

    Text Solution

    |

  4. If x^2-4x+p=0has real roots then

    Text Solution

    |

  5. The roots of the equation x^2-sqrt3x-x+sqrt3=0 are

    Text Solution

    |

  6. The roots of the equation ax^2+x+b=0 are equal if

    Text Solution

    |

  7. If x=1 is a common root of equations ax^2+ax+3=0 and x^2+x+b=0then ab=

    Text Solution

    |

  8. The equation ax^2+2x+a=0 has two distinct roots,if

    Text Solution

    |

  9. If x^2+2(k+2)x+9k=0 has equal roots then k= a)-1,4 b)1,-4 c)-1,-4 ...

    Text Solution

    |

  10. If 8 is a root of the equation x^2-10x+k=0then the value of k is a)1...

    Text Solution

    |

  11. If a and b are the roots of the equation x^2+ax+b=0,then a+b=

    Text Solution

    |

  12. If one root of the equation x^2+ax+3=0 is 1,then its other root is ...

    Text Solution

    |

  13. The positive value of k for which the equation x^2+kx+64=0 and x^2-8x+...

    Text Solution

    |

  14. The roots of the equation sqrt2x^2+5x+2sqrt2=0 are a)Rational b)Irr...

    Text Solution

    |

  15. The value Of sqrt(6+sqrt(6+sqrt(6+.....))) is a)-2 b)3.5 c)3 d)4

    Text Solution

    |

  16. For the quadratic equation x^2-2x+1=0 the value of x+1/x is a)1 b)-...

    Text Solution

    |

  17. If the equation (a^2+b^2)x^2-2(ac+bd)x+(c^2+d^2)=0 has equal roots, th...

    Text Solution

    |

  18. If (a^2+b^2)x^2+2(ac+bd)x+(c^2+d^2)=0 has no real roots then

    Text Solution

    |

  19. The roots of the equation ax^2+bx+c=0will be reciprocal of each other ...

    Text Solution

    |

  20. The roots of the equation ax^2+bx+c=0 will be equal in magnitute but o...

    Text Solution

    |