Question

(x^2+1/x^2)-4(X+1/X)+6 factorise
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Answer 1

Answer:

x²+1/x)=(x+1/x)²-2(x-1/x)=(x+1/x)²-2

x+1/x)²-2-4(c+1/x)+6

t²-4t+4

(t-2)²

(x+1/x-2)²///

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