SOLUTION: (3/5 cube root of -125)-(1/4 cube root of 56)+(1/2 cube root of 189) needs to be simplify. Help.

SOLUTION: (3/5 cube root of -125)-(1/4 cube root of 56)+(1/2 cube root of 189) needs to be simplify. Help.

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Question 540529: (3/5 cube root of -125)-(1/4 cube root of 56)+(1/2 cube root of 189) needs to be simplify. Help.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Note that
and

so

also,

Now the problem becomes

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