Question

One of the factors of (x³ – 1) – (x – 1) is
(a) x² + 1
(b) x² – 1
(c) x – 1
(d) x + 4​

Answer 1

(c) x - 1 (θ‿θ) (✷‿✷)

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Answer 2

Answer:

(x^3-1)-(x-1)

=(x-1)(x^2+x+1)-(x-1)

=(x-1)(x^2+x+1-1)

=(x-1)(x^2+x)

=(x-1).x(x+1)

=x(x-1)(x+1)

so one of the factor is (x-1)

c is the correct answer