SOLUTION: I am not understanding how to express each power asa radical,then evaluate. (-7776)^2/5
I go over other examples but not understanding how they get the last bit of the answer o
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-> SOLUTION: I am not understanding how to express each power asa radical,then evaluate. (-7776)^2/5
I go over other examples but not understanding how they get the last bit of the answer o
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Question 262247: I am not understanding how to express each power asa radical,then evaluate. (-7776)^2/5
I go over other examples but not understanding how they get the last bit of the answer on the calculator.
They have as an example..... (-243)^1/5=5√-243 = -3
not sure how they got =-3? very stumped.... Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! (-3)^5 = -243
So the 5th root of -243 is -3.
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6^5 = 7776
Odd powers of negatives are negative.
(-6)^5 = -7776
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(-7776)^(1/5) = -6
(-6)^2 = +36
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Calculators use logs for internal calculation, which don't handle negative numbers in most cases (most calculators).
