7+∛-216= 7+∛(-6³) = 7-6 =1.
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9 -(2401)^(1/4) =9 -((7)^4)^(1/4) = 9 -(7)^(4*1/4)= 9 -7 =2. || 7⁴ =2401||.
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3^(1/4) * 27^(1/4) = (3*27)^(1/4) =(3⁴) ^(1/4) =3.
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(128)^(1/5) /(4)^(1/5) =(128/4) ^(1/4) =32^(1/4) =(2⁴) ^(1/4) =2.
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(∛7+∛5)(∛7² -∛7*∛5 +∛5²) = (∛7)³+(∛5)³=7+5=12.