You can put this solution on YOUR website! 1-4/k^2 / 1+ 1/k-2/k^2
First Multiply numerator and denominator by k2
k^2(1-4/k^2)
____________ k^2-4/k^2+k-2 The factor top and bottom
k^2(1+1/k-2/k^2)
(k+2)(k-2)/(k+2)(k-1) -
(k-2)/(k-1) is the final answer please forgive the awful formatting
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