Question

Factorize:-a³ - a² + a - 1 and 2a³- a²+ a - 2
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Answer 1

a^3-1-a^2+a

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

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

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

2nd exp

2a^3-2-a^2+a

2(a^3-1)(a^2+1)

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

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

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