factories xpower 8 -1
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©. x^8 - 1
= ( x^4 )^2 - ( 1 )^2
=( x^4 - 1 ) (x^4 + 1 )
= { ( x^2 )^2 - (1)^2 } ( x^4 + 1 )
= ( x^2 - 1 ) (x^2 + 1 ) ( x^4 + 1 )
= { (x)^2 - (1 ) ^2 } ( x^2 + 1 ) ( x^4 + 1 )
= ( x - 1 ) (x + 1 ) ( x^2 + 1 ) ( x^4 + 1 )
【 hope it helps 】
= ( x^4 )^2 - ( 1 )^2
=( x^4 - 1 ) (x^4 + 1 )
= { ( x^2 )^2 - (1)^2 } ( x^4 + 1 )
= ( x^2 - 1 ) (x^2 + 1 ) ( x^4 + 1 )
= { (x)^2 - (1 ) ^2 } ( x^2 + 1 ) ( x^4 + 1 )
= ( x - 1 ) (x + 1 ) ( x^2 + 1 ) ( x^4 + 1 )
【 hope it helps 】
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