SOLUTION: COMPLETE 4X/X-1=?/(X+1)(X-1)

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Question 229239: COMPLETE
4X/X-1=?/(X+1)(X-1)
Answer by ankor@dixie-net.com(12692) About Me  (Show Source):
You can put this solution on YOUR website!
COMPLETE
4X/X-1=?/(X+1)(X-1)
:
Use z instead of ?
%284x%29%2F%28%28x-1%29%29 = z%2F%28%28x%2B1%29%28x-1%29%29
:
Multiply both sides by (x+1)(x-1), results
:
4x(x+1) = z
:
Replace z:
%284x%29%2F%28%28x-1%29%29 = %284x%28x%2B1%29%29%2F%28%28x%2B1%29%28x-1%29%29
:
Note if cancel (x+1), you have
%284x%29%2F%28%28x-1%29%29 = %284x%29%2F%28%28x-1%29%29; obviously true