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    qwertyuioop's Avatar
    qwertyuioop Posts: 87, Reputation: 1
    Junior Member
    		  
    #1

    Jun 14, 2012, 07:23 AM
    MATH how do u do this?
    how do you do this
    2x^2+5x-7
    step by step?
    what is the first step?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
    Expert
    		  
    #2

    Jun 14, 2012, 07:30 AM
    You solve it the same way as the previous problem you posted: https://www.askmehelpdesk.com/math-s...ep-670751.html
    qwertyuioop's Avatar
    qwertyuioop Posts: 87, Reputation: 1
    Junior Member
    		  
    #3

    Jun 14, 2012, 07:33 AM
    Ik but how do u know when u have 2 use the quadratic formula
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #4

    Jun 14, 2012, 07:37 AM
    Well, I assumed that you wanted to solve for x given 2x^2-5x+7=0. You can always apply the quadratic equation to such problems to find the solutions for x. If that's not what the question is, please clarify.
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