Question

[x²+1/x²]-4[c+1/x]+6 factorise
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Answer 1

Step-by-step explanation:

x²+1/x²-4 (c-1)/x+6

x²+1/x²-4c+4/x+6

x²+1-x(4c+4)+6x²/x²

x²+1-4cx-4x+6x²/x²

7x²+1-4cx-4x/x²

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