Question 461901
Subtract. Simplify by collecting like radical terms if possible, assuming that all expressions under radicals represent nonnegative numbers. 
∛54x-∛(2x^4 ) 
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= cbrt(27)*cbrt(2x) - cbrt(x^3)*cbrt(2x)
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= 3*cbrt(2x) - x*cbrt(2x)
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= (3-x)*cbrt(2x)
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Cheers,
Stan H.
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