SOLUTION: I need help with my math. What are 2 solutions to the equation (x+1)^2=16?

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Question 913104: I need help with my math. What are 2 solutions to the equation (x+1)^2=16?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

%28x%2B1%29%5E2=16

x%5E2%2B2x%2B1=16

x%5E2%2B2x%2B1-16=0

x%5E2%2B2x-15=0


x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-2+%2B-+sqrt%28+2%5E2-4%2A1%2A%28-15%29+%29%29%2F%282%2A1%29+
x+=+%28-2+%2B-+sqrt%28+4%2B60+%29%29%2F2+
x+=+%28-2+%2B-+sqrt%28+64+%29%29%2F2+
x+=+%28-2+%2B-+8%29%2F2+
solutions
x+=+%28-2+%2B+8%29%2F2+
x+=+6%2F2+
x+=+3+
or
x+=+%28-2+-+8%29%2F2+
x+=+-10%2F2+
x+=+-5+

+graph%28+600%2C+600%2C+-10%2C+10%2C+-20%2C+10%2C+x%5E2%2B2x-15%29+