SOLUTION: X4 – 16 _________ X - 2

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Question 80017: X4 – 16
_________
X - 2
Answer by sprolden(40) About Me  (Show Source):
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X4 – 16
_________
X - 2
1- Factor the numerator.
(x+2)(x-2) = X^4 - 16
2- Rewrite the numerator in factored form.
(x+2)(x-2)
-----------
x-2
3- After canceling expressions that are alike, you'll end up with the following.
x+2
4- The solution is x+2.