Mathematics

Tripp Collins

9 September, 18:40

Does the expression x^3-1/x^2-1 simplify to x?

No, because x3 - 1 can be factored as x (x2 - x + 1) and x2 - 1 can be factored as x (x - 1), so only x can be canceled.

Yes, because x3 (x - 1) can be factored as x2 (x - 1) and x2 - 1 can be factored as x (x - 1), so (x - 1) can be canceled.

No, because the - 1 in the numerator and denominator is not a common factor and cannot be canceled.

Yes, because - 1 in the numerator and denominator is a common factor and can be canceled.