SOLUTION: (x + 2)^2 = 121

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Question 617682: (x + 2)^2 = 121
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

%28x%2B2%29%5E2=121 Start with the given equation.


x%2B2=%22%22%2B-sqrt%28121%29 Take the square root of both sides.


x%2B2=sqrt%28121%29 or x%2B2=-sqrt%28121%29 Break up the "plus/minus" to form two equations.


x%2B2=11 or x%2B2=-11 Take the square root of 121 to get 11.


x=-2%2B11 or x=-2-11 Subtract 2 from both sides.


x=9 or x=-13 Combine like terms.


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Answer:


So the solutions are x=9 or x=-13.