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mohammad zaffar

· started a discussion

· 1 Months ago

not clear (Question:688791.0)

please elaborate step by step

Question:

If x2 – 4x + 1 = 0 find x9 + x7 – 194x5 – 194x3 = ?

Options:
A) –2
B) –4
C) 0
D) 1
Solution:

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