Question

GCD of a²-1,a³-+,a²+a-2. ​

Answer 1

Answer:

Factors of a²-1 (a-1)

factors of a³-1 =(a-1) (a²-a+1)

factors of a²+a-2

(a²+a-2)

(a²+2a -a-2)

[{a(a+2)-1 (a+2)}].

=a+2 X a-1.

this is your answer

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