(x - 4)^5 - 9(x - 4)^3 = 0 find all real solutions for x
Last edited by mr fantastic; Jan 27th 2009 at 05:06 AM. Reason: Merged posts, clarified equation
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To visualize this better, let . So our equation becomes: Factor out to get: And notice that the second factor is a difference of squares. Can you carry on from here?
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