brien301
21.12.2019 •
Mathematics
Consider the function f(x) = x^3 - 15x^2 + 50x.? what are the real zeros in this function?
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Ответ:
We have
.
To find zeros of this function we equate it with 0
.
First we factor out x
where we find that first zero is .
Then we look at the expression in parentheses
using Viéts rule (factorisation)
we can rewrite the equality
.
If either of the terms is zero then the equality is true so we get two more zeros and .
Hope this helps.
Ответ: