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Math Help - Factorising?

  1. #1
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    Factorising?

    Hello folks,

    Have not done any maths in a couple of years and now an assignment has lead me to a mental blank. I have to solve 1000 = 0.7Ts - 205.1 + 6.804Ts^4 - 5.01 for Ts obviously. The second Ts is to the power of 4 for clarity.

    How do I do this? I know it is simple but am a bit rusty...

    Any help greatly appreciated.

    Regards Paul.
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  2. #2
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    Quote Originally Posted by paulbk108 View Post
    Hello folks,

    Have not done any maths in a couple of years and now an assignment has lead me to a mental blank. I have to solve 1000 = 0.7Ts - 205.1 + 6.804Ts^4 - 5.01 for Ts obviously. The second Ts is to the power of 4 for clarity.

    How do I do this? I know it is simple but am a bit rusty...

    Any help greatly appreciated.

    Regards Paul.
    Dear Paul,

    Is this what you mean??

    1000 = 0.7T_{s} - 205.1 + 6.804T^{4}_{s} - 5.01
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  3. #3
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    Yes - that is precisely what I mean. How do you make it appear like that? And secondly what is the answer to the equation?
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  4. #4
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    1000 = 0.7T_{s} - 205.1 + 6.804T^{4}_{s} - 5.01

    Move the 1000 to the right side; the whole equation now equals 0.

    0 = 0.7t_{s} - 205.1 + 6.804t^{4}_{s} - 5.01 - 1000

    Rearrange into the form ax^2 + bx + c.

    0 = 6.804t^{4}_{s} + 0.7t_{s} - 205.1 - 5.01 - 1000

    Add like terms.

    0 = 6.804t^{4}_{s} + 0.7t_{s} - 1210.11

    This expression cannot be simplified any further.

    To write equations in this format, go to http://www.mathhelpforum.com/math-help/latex-help/ and read the Latex tutorials. You can click on the equations in my posts to view the source code that was used to format them.
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  5. #5
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    The answer for Ts is a whole number, so somehow this can be done. I am not sure how. Is there software available? Can anyone else add anything to this?

    Regards Paul.
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  6. #6
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    Quote Originally Posted by paulbk108 View Post
    The answer for Ts is a whole number, so somehow this can be done. I am not sure how. Is there software available? Can anyone else add anything to this?

    Regards Paul.
    Dear Paul,

    Of course there are software for fatorizing. Let me give you a useful website!!

    Algebra.Help -- Factoring Calculator

    Hope this will help you.
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  7. #7
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    Quote Originally Posted by paulbk108 View Post
    The answer for Ts is a whole number, so somehow this can be done. I am not sure how. Is there software available? Can anyone else add anything to this?

    Regards Paul.
    Using a TI-83, I get a zero at x=161.26. Anyone else try it?

    Not sure about the whole number as the answer.....
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