y = x^5 -20x^2 +120x
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A 5th degree polynomial. Easily factored as y = x ( x^4 - 20x + 120).
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it's a polynomial
more specifically, it's also called a Quintic function or equation.
more specifically, it's also called a Quintic function or equation.
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A quintic function
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It is a three term polynomial of the fifth degree