SOLUTION: Solve. x^2-2x=-13 Thank you

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Question 20105: Solve.
x^2-2x=-13
Thank you
Answer by pwac(253) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2-2x=-13 take -13 to left changing sign
x%5E2-2x%2B13=0a quadratic with no real solutions for x
It does not factor and using formula the discriminant:
sqrt%28b%5E2-4ac%29=sqrt%284-52%29is less than zero.
However if you are the person that sent mex%5E2-2x=13
by e-mail.This will give solutions.
x%5E2-2x=13 goes to
x%5E2-2x-13=0using quadratic formula:
x=%28-b%2B-sqrt%28b%5E2-4%2Aa%2Ac%29%29%2F%282%2Aa%29gives
x=%282%2B-sqrt%2856%29%29%2F2
x=%281%2B-sqrt%2814%29%29
x=4.7417 and
x=-2.7417
Pete