Question

x^3 - x^2 + ax + x - a - 1 Factorise​

Answer 1

Step-by-step explanation:

x^3 - x^2 + ax + x - a - 1

x^3+ax+x -x^2 - a -1

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

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

Answer 2

x^3 - x^2 + ax + x - a - 1

x^3+ax+x-x^2-a-1

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

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

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