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Math Help - How would I expand this equation??

  1. #1
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    Exclamation How would I expand this equation??

    How would I expand this equation??-screen-shot-2013-04-29-9.15.15-pm.png How would I expand this.
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    Re: How would I expand this equation??

    Quote Originally Posted by BryannaAllan View Post
    Click image for larger version. 

Name:	Screen Shot 2013-04-29 at 9.15.15 PM.png 
Views:	6 
Size:	7.7 KB 
ID:	28191 How would I expand this.
    How do you expand (a + b)^2? Let a = 5.913 \sqrt{x - 60} and b = 7.

    -Dan
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    Re: How would I expand this equation??

    I do know how to tackle the question with that rule but I am unsure as to what the actual answer would come out looking like due to the square root.
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    Re: How would I expand this equation??

    Well what have you tried? Don't shy away just because it looks a little more difficult than normal. You'll never achieve anything like that...
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    Re: How would I expand this equation??

    Show us what you've got. If it isn't right, we'll help.

    -Dan
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    Re: How would I expand this equation??

    No as in I have written it out three times and then tried it on the calculator and all three times it has been wrong. So far I have gotten 34.963569(x-60) +82.782(sq root) x-60 +49
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    Re: How would I expand this equation??

    Assuming that sqrt is supposed to cover (x - 60) [some brackets where they're needed would be nice] I agree with your answer...
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    Re: How would I expand this equation??

    If I were to integrate that, how would i actually do it with the square root there? Would I also be able to expand the first part of the equation to 34.963569x-2097.81414? How could i expand the second part like that to make it easier to integrate?
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    Re: How would I expand this equation??

    Try a u-substitution with u = x - 60.
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