add maths

x^2-17x+52=0

The answer is 4,13
But i don't know how to do..

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asked by mandy
  1. (x-4)(x-13)= 0
    if you multiply the brackets you would go back to
    x^2 - 17 x + 52=0

    the best is to look for the solutionof quadratic functions on google where to get the roots of the equation you substitute in
    x= -b +/- SQRT(b^2-4ac)/2a

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    posted by Hussein

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