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    Hey, I can't seem to be able to remember how to solve this sort of problem. Can anyone show the workings for me?

    Find, as surds, the roots of the equation:

    2(x+1)(x-4) - (x-2)^2 = 0
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    Get everything as ax^2 + bx + c = 0 and use the quadratic formula.
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    What the above posts says!!!!
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    (Original post by stevencarrwork)
    Get everything as ax^2 + bx + c = 0 and use the quadratic formula.
    Ahh, now I see. I tried completing the square. :facepalm2:

    Thanks a lot.
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    (Original post by Srxjer)
    Ahh, now I see. I tried completing the square. :facepalm2:

    Thanks a lot.
    Completing the square should work just as the formula should work. The choice of method does not matter.
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    i think he meant, he was trying to complete the square without having multiplied the brackets out i believe.
 
 
 
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Updated: February 11, 2010
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