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32 votes
32 votes
What are the zeros of the polynomial function f(x) = x3 − 9x2 + 20x

0, −5, 4

0, 5, 4

0, 5, −4

0, −5, −4

User Rakhi Vijayan
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2.6k points

2 Answers

18 votes
18 votes
the answer is 0,5,4 trust mee
User Virsha
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3.1k points
26 votes
26 votes
First you take out x since every variable has it.
x(x^2-9x+20)
Then you break it up to find out what makes 20 when multiplied but -9 when added.
x(x-5)(x-4)
So the 0s would be 0,5,4
User Rob Spieldenner
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3.2k points