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10 points for best answer. Math help. How do you solve this?
So I want to know how to do this. Can you explain what I need to do?:
Here is the question: Write a polynomial function in standard form with the following zeroes. 2,3,4
Thanks in advance!
4 Answers
- Anonymous1 decade agoFavorite Answer
✐Explanation✐
Work backward!
Zeroes = 2, 3, 4
(x - 2)(x - 3)(x - 4) = 0
Factor.
(x² - 5x + 6)(x - 4) = 0
x³ - 4x² - 5x² + 20x + 6x - 24 = 0
x³ - 9x² + 26x - 24 = 0
Source(s): Knowledge - Ashley JeanneLv 51 decade ago
Pretty simple. It's the reverse of a factoring problem.
If the zeroes are 2, 3, 4, then the factors are (x - 2)(x - 3)(x - 4). Now multiply them out.
(x^2 - 5x + 6)(x - 4) =
x^3 - 5x^2 +6x - 4x^2 + 20x - 24 =
x^3 -9x^2 + 26x - 24
All done
Source(s): My Cranium Branium - workoutgirl1235Lv 61 decade ago
If 'a' is a zero, or root, then x - a is a factor.
We will assume that there is no monomial factor here.
(x - 2)(x - 3)(x - 4) = 0
(x - 2)(x² - 7x + 12) = 0
x³ - 7x² + 12x - 2x² + 14x - 24 = 0
x³ - 9x² + 26x - 24 = 0
- Anonymous1 decade ago
If r is a root then x-r is a factor. So the factors of your polynomial are (x-2)(x-3)(x-4). Multiply these together and you will get a x^3 polynomial with your given roots.
have a nice night.