SOLUTION: Find the following ^18sqrt(-7)^18 (this is a power over the beginning of the sqrt symbol.) simplify please help me i am lost, especially with the -7

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> SOLUTION: Find the following ^18sqrt(-7)^18 (this is a power over the beginning of the sqrt symbol.) simplify please help me i am lost, especially with the -7       Log On

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Question 387453: Find the following
^18sqrt(-7)^18 (this is a power over the beginning of the sqrt symbol.)
simplify
please help me i am lost, especially with the -7

Answer by jim_thompson5910(28598) About Me  (Show Source):
You can put this solution on YOUR website!
Use the fact that root%28n%2Cx%5En%29=abs%28x%29


So in this case, n=18 and x=-7, which means that root%2818%2C%28-7%29%5E18%29=abs%28-7%29=7


So root%2818%2C%28-7%29%5E18%29=7