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Please Help!

What is a cubic polynomial function in standard form with zeros –5, –1, and –5?

Please Help! What is a cubic polynomial function in standard form with zeros –5, –1, and-example-1
User Kimberli
by
3.0k points

1 Answer

23 votes
23 votes
FIRST. find the factors:
X=-5 --> (X + 5) = 0
x = 1--> (X - 1) = 0
x =3 --> (x - 3) = 0
3
NEXT, multiply all the factors:
(x + 5) (x - 1) (x - 3) = 0
-> X3 + x2 - 17x +15 = 0
-> f(x) = x3 + x2 - 17x +15 or
y=x3 + x2
17x + 15
User Analytic Lunatic
by
3.1k points
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