SOLUTION: (x+3)squared - 20=0

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Question 4950: (x+3)squared - 20=0
Answer by Abbey(339) About Me  (Show Source):
You can put this solution on YOUR website!
x%2B3%29%5E2-20=0
x%5E2%2B6x%2B9-20=0
x%5E2%2B6x-11=0
Use the quadratic equation:
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
where
A=1
b=6
c=-11
x+=+%28-6+%2B-+sqrt%28+6%5E2-4%2A1%2A-11+%29%29%2F%282%2A1%29+
x+=+%28-6+%2B-+sqrt%28+36%2B44+%29%29%2F%282%29+
x+=+%28-6+%2B-+sqrt%28+80%29%29%2F%282%29+