For some strange reason I don't know how these equal each other;

u^2/ u^2-4 = 1+ 4/ u^2-4

help?

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- Jul 10th 2009, 03:50 PMkloolessEquivalent terms
For some strange reason I don't know how these equal each other;

u^2/ u^2-4 = 1+ 4/ u^2-4

help? - Jul 10th 2009, 04:26 PMUnenlightened
- Jul 10th 2009, 04:47 PMklooless
Most likely, yes. but what step is taken to get from the left to the right side?

- Jul 10th 2009, 06:45 PMskeeter
$\displaystyle \frac{u^2}{u^2-4} = \frac{u^2-4+4}{u^2-4} = \frac{u^2-4}{u^2-4} + \frac{4}{u^2-4} = 1 + \frac{4}{u^2-4}$