SOLUTION: (n-7)(n-7)=16

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Question 116043: (n-7)(n-7)=16
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
%28n-7%29%28n-7%29=16

This is the same as

%28n-7%29%5E2=16

So take the square root of both sides:
sqrt%28%28n-7%29%5E2%29=sqrt%2816%29

n-7=4 or n-7=-4

n=11 or n=3

Or, you could do it the hard way:
%28n-7%29%28n-7%29=16
n%5E2-14n%2B49=16
n%5E2-14n%2B33=0
%28n-11%29%28n-3%29=0

n=11 or n=3

It works out either way.