a^4 -1
answer is. (a^2 +1)(a+1)(a-1)
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Answer:
he guess:--
Step-by-step explanation:
a^4-1= (a^2)^2 - 1^2
. =(a^2-1)(a^2+1)
. = (a-1)(a+1)(a^2+1)
by using this formula..
a^2-1= (a+1)(a-1)
I hopes its helps u.
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