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Combination

Solve: x3-x...

Question

Solve: $x^{3} - (x + 1)^{2} = 2001$

A

13

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B

16

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C

10

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D

21

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Solution

The correct option is A 13
directly substituting option $A$ in the given equation
$x^{3} - (x + 1)^{2} = 2001$
$(13)^{3} - (13 + 1)^{2} = 2197 - 196 = 2001$
since $a$ is satisfying the equation it is correct option

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