If x + y = 5, $x^{3}+y^{3}$ = 35, then what is the positive difference between x and y?

If x + y = 5, $x^{3}+y^{3}$ = 35, then what is the positive difference between x and y?
1). 0
2). 1
3). 5
4). 6

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Sum of (2+2)
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