Question

Solve the given equation.

Answer 1

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Answer 2

1/n-2=2n+1/n^2+2n-8+2/n+4
=>1/n-2=2n+1/n^2+4n-2n-8+2/n-4
=>1/n-2=2n+1/n(n+4)-2(n+4)+2/n-4
=>1/n-2=2n+1/(n+4)(n-2)+2/n-4
=>1/n-2=2n+1(n-4)+2(n+4)(n-2)/(n^2-16)(n-2)
=>n^2-16=2n^2-8n+n-4+2(n^2-4+4n-8)
=>n^2-16=2n^2-7n+2n^2-24+8n
=>n^2-16=4n^2+n-24
=>4n^2-n^2+n-24+16=0
=>3n^2+n-8=0