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Thread: how will i solve this question ?

  1. #1
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    how will i solve this question ?

    hi, how can I solve this question using the formula a(x+h)+k
    f(x)=2x^2+x+1

    I tried soo much, but I just couldn't solve it.
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  2. #2
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    Re: how will i solve this question ?

    Quote Originally Posted by melody99 View Post
    hi, how can I solve this question using the formula a(x+h)+k
    f(x)=2x^2+x+1

    I tried soo much, but I just couldn't solve it.
    I think you mean $a(x+h)^2 + k$, yes?

    $2x^2 + x + 1 =$

    $2 \left(x^2 + \dfrac x 2 + \dfrac 1 2\right) = $

    $2 \left(\left(x+\dfrac 1 4\right)^2 - \dfrac {1}{16}+\dfrac{1}{2}\right)$

    $2\left(x+\dfrac 1 4\right)^2 +\dfrac 7 8$
    Thanks from topsquark and melody99
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  3. #3
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    Re: how will i solve this question ?

    @melody99 ... in future, post algebra problems in the algebra forum.

    forum rules ... #13
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