SOLUTION: solve by taking square roots. 9n^2+3=228

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Question 538060: solve by taking square roots.
9n^2+3=228
Found 2 solutions by mananth, MathTherapy:
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
9n^2+3-228
9n^2=228-3
9n^2=225
(3n)^2=(25)^2
take square root
3n=25
n=25/3

Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!
solve by taking square roots.
9n^2+3=228

9n%5E2+%2B+3+=+228

9n%5E2++=+225 ---- Subtracting 3 from both sides

n%5E2+=+225%2F9 ------ Dividing by 9

n%5E2+=+25

sqrt%28n%5E2%29+=+sqrt%2825%29 ----- Taking square root of both sides

n = highlight_green%285%29

OR

9n%5E2+%2B+3+=+228

9n%5E2++=+225 ---- Subtracting 3 from both sides

sqrt%289n%5E2%29+=+sqrt%28225%29 ----- Taking square root of both sides

3n = 15

n = 15%2F3, or highlight_green%285%29

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