factorize a^3 - a^2 - 1
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Answer:
[(a-1)(a+1)](a-1)
Step-by-step explanation:
a3-a2-1
a2(a-1)-1.
(a2-1)(a-1)
[(a)2-(1)2](a-1)
[(a-1)(a+1)](a-1).
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