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Anil Singh

· started a discussion

· 1 Months ago

good question (Question: 112002.0 )

very good question.... toprankers ...

Question:
The factors of x8 + x4 + 1 are :
Options:
A) (x4+1-x2), (x2 + 1+x), (x2+1-x) 
B) (x4 + 1 - x2), (x2 - 1+x), (x2 + 1+x)
C) (x4 - 1 + x2), (x2 - 1+x), (x2 + 1+x)
D) (x4 - 1 + x2), (x2 + 1-x), (x2 + 1+x)
Solution:
Ans: (a)

x8 + x4 + 1 = (x4 + x2 + 1) (x4 - x2 + 1)

= (x4 - x2 + 1) (x2 + x + 1) (x2 - x + 1)

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· 1 Months ago

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