SOLUTION: use the quadratic formula to find the real solutions x^2+2x-13=0 x=

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Question 304685: use the quadratic formula to find the real solutions
x^2+2x-13=0
x=
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x^2+2x-13=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x=(-2+-sqrt[262-4*1*-13])/2*1
x=(-2+-sqrt[4+52])/2
x=(-2+-sqrt56)/2
x=(-2+-7.4833)/2
x=(-2+7.4833)/2
x=5.4833)/2
x=2.74 ans.
x=(-2-7.4833)/2
x=-9.4833/2
x=-4.87 ans.