x ^ { 2 } + 1 / x ^ { 2 } = 27 \text { then find } x ^ { 3 } + 1 / x ^ – InterviewSolution

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x ^ { 2 } + 1 / x ^ { 2 } = 27 \text { then find } x ^ { 3 } + 1 / x ^ { 3 } \text { and } x

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