SOLUTION: Can someone please tell me if I'm doing something wrong. (x^-4+6x^-8)/1-36x^-8 I keep coming up with 6x^8/x^12-36x^12

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: Can someone please tell me if I'm doing something wrong. (x^-4+6x^-8)/1-36x^-8 I keep coming up with 6x^8/x^12-36x^12      Log On


   

Question 279695: Can someone please tell me if I'm doing something wrong.
(x^-4+6x^-8)/1-36x^-8
I keep coming up with 6x^8/x^12-36x^12
Found 2 solutions by Alan3354, mananth:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
(x^-4+6x^-8)/1-36x^-8
I keep coming up with 6x^8/x^12-36x^12
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(x^-4+6x^-8)/1-36x^-8
= x%5E-4%2A%281+%2B+6x%5E-4%29%2F%28%281-6x%5E-4%29%2A%281%2B6x%5E-4%29%29
= x%5E-4%2F%281+-+6x%5E-4%29
or = 1%2F%28x%5E4%2A%281+-+6x%5E-4%29%29
= 1%2F%28x%5E4+-+6%29

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
(x^-4+6x^-8)/1-36x^-8
(1/x^4 +6/x^8) / 1-36/x^8
(x^4+6 / x^8 ) / (x^8-36) /x^8
(x^4+6)/x^8 * x^8/(x^8-36)
(x^4 +6)/(x^8-36)
(x^4+6) / (x^4+6)(x^4-6)
1/(x^4-6)