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Question Number 60347 by ANTARES VY last updated on 20/May/19

Commented by ANTARES VY last updated on 20/May/19

$$\mathbf{calculate}$$

Answered by mr W last updated on 20/May/19

$$x=\sqrt{2^3\sqrt{5^{3}x}}$$$$x^2=2^3\sqrt{5^{3}x}$$$$x^4=2^6\times 5^{3}x$$$$x^3=2^6\times 5^3$$$$\Rightarrow x=2^2\times 5=20$$$$\Rightarrow answerD$$

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