Question

Evaluate : 27cube root +0.008 cube root +0.064cube root

Answer 1

Hope u like my process
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$\sqrt[3]{27} + \sqrt[3]{0.008} + \sqrt[3]{0.064} \\ \\ = \sqrt[3]{ {3}^{3} } + \sqrt[3]{ {2}^{3} \times {10}^{ - 3} } + \sqrt[3]{ {4}^{3} \times {10}^{ - 3} } \\ \\ = 3 + (2 \times {10}^{ - 1} ) + (4 \times {10}^{ - 1} ) \\ \\ = 3 + 0.2 + 0.4 = 3.6$
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