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Class 9MathematicsNumber SystemsExponentsHard
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If (x^3=9261) then what is (x)?

Answer and explanation

Correct answer: 21

Since \(21^3=21\times21\times21=441\times21=9261\), it follows that \(x=21\). Thus, the cube root of 9261 is 21. The cubes of the other options are not equal to 9261. Exam tip: identify the nearest perfect cube or verify the answer by cubing the option.

Related tags

Number SystemsExponentsCube RootsPerfect CubesMathematicsClass 9 Mcq
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