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Question
The square of a natural number subtracted from its cube is 48. The number is ______.
Options
8
6
5
4
MCQ
Fill in the Blanks
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Solution
The square of a natural number subtracted from its cube is 48. The number is 4.
Explanation:
x3 − x2 = 48
x2(x − 1) = 48
x2(x − 1) = 42(4 − 1)
x = 4
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Number System (Entrance Exam)
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