SOLUTION: x^2+18x+63=0 Use the quadriatic formula. Thank you for your help and time!!!!

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Question 46403: x^2+18x+63=0
Use the quadriatic formula.
Thank you for your help and time!!!!
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
Use the quadratic formula where:
a=1
b=18
c=63
.
x+=+%28-18+%2B-+sqrt%28+18%5E2-4%2A1%2A63+%29%29%2F%282%2A1%29+[Plug-in the values and solve]
x+=+%28-18+%2B-+sqrt%28+324-252+%29%29%2F%282%29+ [Combine terms and simplify]
x+=+%28-18+%2B-+sqrt%28+72+%29%29%2F%282%29+[Factoring 72 = 2*4*9]
x+=+%28-18+%2B-+6sqrt%282%29%29+%2F%282%29+
x+=+2%28-9+%2B-+3sqrt%282%29%29%2F%28+2%29+ [Factor out "2"]
x+=+%28-9+%2B-+3sqrt%282%29%29%29 [Cancel out "2"]
x+=+%28-9+%2B-+3sqrt%282%29%29
x=-13.2426 or x = -4.7573