Question

please help me out with the 14th. question​

Answer 1

$\sqrt[4]{81} - 8 \sqrt[3]{216} + 15 \sqrt[3]{32} + \sqrt{225}$

Take out the common factors ☞

⟹ $\sqrt[4]{3 \times 3 \times 3 \times 3} - 8 \sqrt[3]{6 \times 6 \times 6} \\+ 15 \sqrt[5]{2 \times 2 \times 2 \times 2 \times 2} +\sqrt{15 \times 15}$

Take out the factors after the root :-

⟹ $3 - 8 \times 6 + 15 \times 2 + 15$

⟹ $\sf\blue{0.}$