For how many different values of $x$ does $x^5 = x^4 + 72x^3$?
Question:
For how many different values of $x$ does $x^5 = x^4 + 72x^3$?
Answer:
Let's think step by step.

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For how many different values of $x$ does $x^5 = x^4 + 72x^3$?
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