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anonymous

  • 5 years ago

when 36 is subtracted from the square of a number, the result is five times the number. what is the positive solution ?

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  1. anonymous
    • 5 years ago
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    think about it. Call your number x and express the sentence in the form of an equation.

  2. anonymous
    • 5 years ago
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    post what you got here.

  3. anonymous
    • 5 years ago
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    ive got nothing.

  4. anonymous
    • 5 years ago
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    would it be like , x-36=5x ?

  5. anonymous
    • 5 years ago
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    you are almost there. are you sure the LHS is x-36?

  6. anonymous
    • 5 years ago
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    x squared?

  7. anonymous
    • 5 years ago
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    yes.

  8. anonymous
    • 5 years ago
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    then bring over the 5x to the LHS and you have got yourself a quadratic equation. solve for x. The positive root is your answer.

  9. anonymous
    • 5 years ago
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    when i bring the 5x over would the equation be : xsquared-5x-36?

  10. myininaya
    • 5 years ago
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    yes but dont forget the = 0

  11. myininaya
    • 5 years ago
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    and thats not a face I tried to type

  12. anonymous
    • 5 years ago
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    lol okay

  13. anonymous
    • 5 years ago
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    yes, this is an equation. you always have a LHS and RHS for an equation.

  14. myininaya
    • 5 years ago
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    you can see if it is factorable or you can use the quadratic formula

  15. radar
    • 5 years ago
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    It is factorable\[x ^{2}-5x-36=0\]\[(x-9)(x+4)=0\] Take it from there and get the solution(s)

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