SOLUTION: Find the limit as x approaches 4 of the function (u^4-256)/(u^3-64)

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Question 656917: Find the limit as x approaches 4 of the function (u^4-256)/(u^3-64)
Answer by Alan3354(69443) About Me  (Show Source):
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Find the limit as x approaches 4 of the function (u^4-256)/(u^3-64)
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= %28u%5E2+%2B+16%29%2A%28u%2B4%29%2F%28%28u%5E2+%2B+4u+%2B+16%29%29
@ u = 4: = 32*8/(16 + 16 + 16)
= 256/48
= 16/3