SOLUTION: x^2-10x-1=-10 Using quadratic formula

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Question 137766: x^2-10x-1=-10
Using quadratic formula
Answer by checkley77(12844) About Me  (Show Source):
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x^2-10x-1=-10
x^2-10x-1+10=0
x^2-10x+9=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x=(10+-sqrt[-10^2-4*1*9])/2*1
x=(10+-sqrt[100-36])/2
x=(10-+-sqrt64)/2
x=(10+-8)/2
x=(10+8)/2
x=18/2
x=9 answer.
x=(10-8)/2
x=2/2
x=1 answer.