SOLUTION: Give exact and approximate solutions to three decimal places. x^2+7x-5=0

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Question 379482: Give exact and approximate solutions to three decimal places.
x^2+7x-5=0
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B7x-5=0
Use the quadratic formula,
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-7+%2B-+sqrt%28+7%5E2-4%2A1%2A%28-5%29+%29%29%2F%282%2A1%29+
x+=+%28-7+%2B-+sqrt%28+49%2B20+%29%29%2F%282%29+
highlight%28x+=+%28-7+%2B-+sqrt%2869+%29%29%2F2%29+
For the approximate values, use a calculator.