SOLUTION: Give exact and approximate solutions to three decimal places. (x+5)^2=9 What are the exact solutions? (Type an exact answer, using radicals as needed. Rationalize all denominat

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Question 474010: Give exact and approximate solutions to three decimal places.
(x+5)^2=9
What are the exact solutions?
(Type an exact answer, using radicals as needed. Rationalize all denominators. Express all complex numbers in terms of i. Use a coma to separate your answers.)
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Give exact and approximate solutions to three decimal places.
(x+5)^2=9
What are the exact solutions?
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x+5 = 3 or x+5 = -3
x = -2 or x = -8
===========================
Cheers,
Stan H.

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%2B5%29%5E2=9}
x%5E2%2B10x%2B25=9}
x%5E2%2B10x%2B25-9=0}

x%5E2%2B10x%2B16=0}.......use quadratic formula
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-10+%2B-+sqrt%28+10%5E2-4%2A1%2A16+%29%29%2F%282%2A1%29+
x+=+%28-10+%2B-+sqrt%28+100-64+%29%29%2F2+
x+=+%28-10+%2B-+sqrt%28+36+%29%29%2F2+
x+=+%28-10+%2B-+6+%29%2F2+
solutions:

x+=+%28-10+%2B6+%29%2F2+
x+=+%28-4+%29%2F2+
x+=+-2+
or
x+=+%28-10+-6+%29%2F2+
x+=+%28-16+%29%2F2+
x+=+-8+
+graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C+%28x%2B5%29%5E2-9%29+