SOLUTION: give exact and approiximate to 3 decimals places:x^2+8x+16=25

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Question 564341: give exact and approiximate to 3 decimals places:x^2+8x+16=25
Answer by ad_alta(240) About Me  (Show Source):
You can put this solution on YOUR website!
Use the quadratic equation [x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ] to get x=-9 or x=1.