Home
Class 14
MATHS
If roots of x^2- 4x + a = 0 are equal, ...

If roots of `x^2- 4x + a = 0` are equal, then a =
यदि `x^2- 4x + a = 0` के मूल बराबर है, तो a = ?

A

a)`-4`

B

b)4

C

c)8

D

d)`-8`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • 2018 Main Exam 2nd Shift

    PINNACLE|Exercise EXERCISE|280 Videos

  • AVERAGE

    PINNACLE|Exercise EXERCISE|164 Videos

Similar Questions

Explore conceptually related problems

If 40% of x equal 50% of y, then y : x is: यदि x का 40% y के 50% के बराबर है, तो y : x है :

If two roots of 4x^(3)-12x^(2)+9x-2=0 are equal then the roots are

If x^2- 4x + 4= 0 , then the value of 16(x^4-1/x^4) is यदि x^2- 4x + 4= 0 है, तो 16(x^4-1/x^4) का मान क्या होगा ?

if the roots of this equation are equal then 4x^(2)+4sqrt(3)x+k=0

If 0.8 : X :: 5 : 8, then X is equal to : यदि 0.8 : X :: 5 : 8, तो X किसके बराबर है ?

If 8x^2+y^2- 12x - 4xy + 9= 0 , then the value of (14x - 5y) is: यदि 8x^2+y^2- 12x - 4xy + 9= 0 है, तो (14x - 5y) का मान ज्ञात करें |

If x^8 – 1442x^4 + 1 = 0 , then a possible value of x - 1/x is: यदि x^8 – 1442x^4 + 1 = 0 है, तो x - 1/x का एक सभावित मान है:

If x^2+1/x^2=11 , then x-1/x is equal to : यदि x^2+1/x^2=11 है, तो x-1/x का मान किसके बराबर होगा ?

If x^2- 6x + 1= 0 , then the value of (x^4+1/x^2) div (x^2+1) is यदि x^2- 6x + 1= 0 है, तो (x^4+1/x^2) div (x^2+1) का मान क्या होगा ?

PINNACLE-ALGEBRA-EXERCISE
  1. If a^(1/3)+b^(1/3)+c^(1/3)=0, then (a+b+c)^6 is equal to : यदि a^(1/...

    Text Solution

    |

  2. If a+b-c = 12 and a^2+b^2+c^2=110, then which among the following rela...

    Text Solution

    |

  3. If roots of x^2- 4x + a = 0 are equal, then a = यदि x^2- 4x + a = 0...

    Text Solution

    |

  4. If a^3-b^3=216 and a-b=6, then (a+b)^2 -ab is equal to: यदि a^3-b^3...

    Text Solution

    |

  5. If a^3+b^3=432 and a+b=12, then (a+b)^2 -3ab is equal to: यदि a^3+b...

    Text Solution

    |

  6. If ab+bc+ca=8 and a+b+c=12 then (a^2+b^2+c^2) is equal to: यदि ab+b...

    Text Solution

    |

  7. If (27x^3-343y^3) div (3x-7y)=Ax^2+By^2 +7Cyx, then the value of (4A -...

    Text Solution

    |

  8. If a^2+b^2+c^2=21, and a + b + c = 7, then (ab + bc + ca) is equal to ...

    Text Solution

    |

  9. If (8x^3-27y^3)div (2x-3y)= (Ax^2+Bxy+Cy^2), then the valueof (2A + B ...

    Text Solution

    |

  10. If 3 sqrt3 x^3-2sqrt2 y^3=(sqrt3x- sqrt2y) (Ax^2+Cxy+By^2), then the v...

    Text Solution

    |

  11. If (a + b + c) = 2 , a^2+b^2+c^2=26, then the value of a^3+b^3+c^3-3ab...

    Text Solution

    |

  12. If (x^3-2 sqrt2 y^3) div (x-sqrt2 y)= (Ax^2+Bxy+Cy^2), then, (2A+4 sqr...

    Text Solution

    |

  13. If 135 sqrt5 x^3-2 sqrt2 y^3 div 3 sqrt5 x- sqrt2 y= Ax^2+By^2+sqrt10 ...

    Text Solution

    |

  14. If (8x^3+27y^3)div (2x+3y)= (Ax^2+Bxy+Cy^2), then the valueof (5A + 4B...

    Text Solution

    |

  15. If a^2+b^2+c^2+27= 6(a+b+c), then what is the value of root (3)(a^3+b^...

    Text Solution

    |

  16. If x+1/x= sqrt5, then x^3+1/x^3 is equal to : यदि x+1/x= sqrt5 है, त...

    Text Solution

    |

  17. If x+1/x= 3, then x^3+1/x^3 is equal to : यदि x+1/x= 3 है, तो x^3+1/...

    Text Solution

    |

  18. If a + b + c = 13 and ab + bc + ca = 54 and a^3+b^3+c^3-3abc is equal ...

    Text Solution

    |

  19. If a + b + c = 11 and ab + bc + ca = 38, then a^3+b^3+c^3-3abc is equa...

    Text Solution

    |

  20. If sqrtx+ 1/sqrtx=sqrt 6, then x^2+1/x^2 is equal to: यदि sqrtx+ 1/s...

    Text Solution

    |