Home
Class 14
MATHS
If 3x+2y=12 and x y=6 , find the value o...

If `3x+2y=12` and `x y=6` , find the value of `9x^2+4y^2`

A

76

B

80

C

72

D

74

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SIMPLIFICATION

    ARIHANT SSC|Exercise HIGHER SKILL LEVEL QUESTIONS|21 Videos
  • SIMPLIFICATION

    ARIHANT SSC|Exercise MULTI CONCEPT QUESTIONS|2 Videos
  • SIMPLE INTEREST

    ARIHANT SSC|Exercise (EXERCISE-C)(HIGHER SKILL LEVEL QUESTION)|16 Videos
  • SPEED, TIME AND DISTANCE

    ARIHANT SSC|Exercise HIGHER SKILL LEVEL QUESTIONS|16 Videos

Similar Questions

Explore conceptually related problems

If 3x+2y=12 and xy=6, find the value of 9x^(2)+4y^(2)

If 3x+2y=12 and xy=6, find the value of 9x^(2)+4y^(2)

If 3x+2y=12 and xy=6, find the value of 9x^(2)+4y^(2)

If 3x-7y=10 and xy=-1, find the value of 9x^(2)+49y^(2)

If 3x+5y=11 and xy=2, find the value of 9x^(2)+25y^(2)

If 2x+3y=8 and xy=2, find the value of 4x^(2)+9y^(2)

If x=3 and y=4 , find the value of 3x+2y

If 3x+4y=12 and 4x+3y=9 , then find the value of x+y

If 3x - 2y = 12 and 6x + y = 9 , then find the values of x and y

If 9x^(2)+25y^(2)=181 and xy=-6, find the value of 3x+5y

ARIHANT SSC-SIMPLIFICATION-EXERCISE BASE LEVEL QUESTIONS
  1. If x = (sqrt2-1 ) ^(-(1)/(2)) then the value of (x ^(2) - (1)/(x ^(2))...

    Text Solution

    |

  2. If x=(sqrt(3)+1)/(sqrt3-1)andy=(sqrt3-1)/(sqrt3+1),"then "x^(2)+y^(2) ...

    Text Solution

    |

  3. 10. If p+ q= 10 and pq= 5, then the numerical value of p/q + q/p will ...

    Text Solution

    |

  4. If x+y=18 and xy=72, what is the vlaue of x^(2)+y^(2)?

    Text Solution

    |

  5. ((m-n)^(3)+(n-r)^(3)+(r-m)^(3))/(6(m-n)(n-r)(r-m))=?

    Text Solution

    |

  6. If a+b+c=14anda^(2)+b^(2)+c^(2)=96 then (ab+bc+ca)=?

    Text Solution

    |

  7. (1/(1xx4)+1/(4xx7)+1/(7xx10)+1/(10xx13)+1/(13xx16))=?

    Text Solution

    |

  8. (1-(1)/(2))(1-(1)/(3))(1-(1)/(4))(1-(1)/(5)).......(1-(1)/(m))=?

    Text Solution

    |

  9. (2- 1/3)(2 - 3/5)(2-5/7).....(2-997/999) is equal to

    Text Solution

    |

  10. The value of (1+(1)/(2))(1+(1)/(3))(1+(1)/(4))......(1+(1)/(150)) is

    Text Solution

    |

  11. If x=sqrt3/2, then the value of (1+x)/(sqrt(1+x)-1)+(1-x)/(1-sqrt(1-x)...

    Text Solution

    |

  12. If a+(1)/(a)=sqrt3 then the value of a^(6)+(1)/(a^(6))+2 will be

    Text Solution

    |

  13. If x+(1)/(x)=2 then (2x^(2)+2)/(3x^(2)+5x+3)

    Text Solution

    |

  14. If a+(1)/(b)=1andb+(1)/(c)=1, then c+(1)/(a)=?

    Text Solution

    |

  15. If x+(a)/(x)=b then the value of (x^(2)+bx+a)/(bx^(2)-x^(3)) is

    Text Solution

    |

  16. If x+1/x=6, find : x^4+1/(x^4)

    Text Solution

    |

  17. If (x+1/x)=2 , then (x-1/x) is equal to (a) 0 (b) 1 (c) 2 (d) 5

    Text Solution

    |

  18. If x+1/x=3 then x^5+1/x^5=

    Text Solution

    |

  19. If 3x+2y=12 and x y=6 , find the value of 9x^2+4y^2

    Text Solution

    |

  20. If (x^(2)+(1)/(x^(2)))=(17)/(4), then what is (x^(3)-(1)/(x^(3))) equa...

    Text Solution

    |