factorise x²+1/x²+2-2x-2/x
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Answered by
24
here is the answer of ur question
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muskansethi:
can you please tell me which formula you have aplied?
in second line (a+b) ^2
ok thankyou
Answered by
12
x² + 1/x² + 2 -2x -2/x
=(x)² + (1/x)² + 2.(x).(1/x) -2(x+1/x)
= (x+1/x)² -2(x+1/x)
= (x+1/x){(x+1/x)-2))}
= (x+1/x)(x+1/x-2)
=(x)² + (1/x)² + 2.(x).(1/x) -2(x+1/x)
= (x+1/x)² -2(x+1/x)
= (x+1/x){(x+1/x)-2))}
= (x+1/x)(x+1/x-2)
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