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Math Help - what is the value of cd?

  1. #1
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    what is the value of cd?

    ok i have no idea how to solve this problem. i tried to fix x to some arbitrary value and just could not get this problem to work out...

    the problem says that c and d are constants and it wants me to find the value of the product??? any help on this problem would be appreciated....

    i even tried to factor out the right side and add the negative of the right side to see if i could get something going, but i am really stuck....

    thanks in advance!what is the value of cd?-imag0091.jpg
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  2. #2
    Senior Member Educated's Avatar
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    Re: what is the value of cd?

    Expand out the right hand side and compare it with the left hand side...

    x^2 + 14x + c = x^2 + 2dx + d^2

    You can see that 14x = 2dx and that c = d^2 so just go from there to solve for d, then c.
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  3. #3
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    Re: what is the value of cd?

    ok i i think i got it, so c = 49 and d=7?
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  4. #4
    Senior Member Educated's Avatar
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    Re: what is the value of cd?

    That's what I got
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  5. #5
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    Re: what is the value of cd?

    thanks!!!!
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