SOLUTION: (x + 2)^2 =1 I need solving this 3 decimal

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Question 327812: (x + 2)^2 =1
I need solving this 3 decimal
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

%28x%2B2%29%5E2=1 Start with the given equation.


x%2B2=%22%22%2B-sqrt%281%29 Take the square root of both sides.


x%2B2=sqrt%281%29 or x%2B2=-sqrt%281%29 Break up the "plus/minus" to form two equations.


x%2B2=1 or x%2B2=-1 Take the square root of 1 to get 1.


x=-2%2B1 or x=-2-1 Subtract 2 from both sides.


x=-1 or x=-3 Combine like terms.


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Answer:


So the solutions are x=-1 or x=-3.