SOLUTION: solve: x squared - 4x - 13 = 0 using the quadratic formula

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Question 211865: solve: x squared - 4x - 13 = 0 using the quadratic formula
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x squared - 4x - 13 = 0
x^2-4x-13=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x=(4+-sqrt(-4^2-4*1*-13])/2*1
x=(4+-sqrt[16+52])/2
x=(4+-sqrt68)/2
x=(4+-8.2462)/2
x=12.2462/2
x=6.1231 ans.
x=(4-8.2462)/2
x=-4.2462/2
x=-2.1231 ans.