SOLUTION: I am having a problems solving these problems Solve: (x-5)^2=7 and also Solve: Square y+9=1 Thank you

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Question 93566: I am having a problems solving these problems
Solve: (x-5)^2=7

and also Solve: Square y+9=1
Thank you
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
(x-5)^2=7
x^2-10x+25-7=0
x^2-10x+18=0
using the quadratic equation:x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
we get:
x=(10+-sqrt[-10^2-4*1*18])/2*1
x=(10+-sqrt100-72)/2
x=(10+-sqrt28)/2
x=(10+-5.29)/2
x=15.29/2
x=7.646 answer.
x=(10-5.29)/2
x=4.71/2
x=2.354 answer.