Question

simplify ⁴√81 -³√8, ⁴√625 -⁴√16

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Answer 1

Answer:

(i) 3 - 2 = 1

(ii) 5 - 2 = 3

answer

Answer 2

$\sqrt[4]{81} - \sqrt[3]{8} \\ = \sqrt[4]{3 \times 3 \times 3 \times 3} - \sqrt[3]{2 \times 2 \times 2} \\ = 3 - 2 \\ = 1$