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mariarad [96]
2 years ago
11

Write a polynomial function of least degree with integral coefficients that have the given zeros.

Mathematics
1 answer:
RideAnS [48]2 years ago
5 0

Using the Factor Theorem, it is found that the polynomial function is given by:

  • f(x) = a(x^4 - 3x^3 - x^2 - 27x - 90), in which a is the leading coefficient.

<h3>Factor Theorem: </h3>
  • The Factor Theorem states that a polynomial function with roots x_1, x_2, \codts, x_n is given by:

f(x) = a(x - x_1)(x - x_2) \cdots (x - x_n)

  • In which a is the leading coefficient.

In this problem, we have that there is a:

  • Zero at x = -2, hence x_1 = -2.
  • Zero at x = 5, hence x_2 = 5.
  • Zero at x = -3i, hence there also has to be a zero at it's conjugate x = 3i, hence x_3 = -3i, x_4 = 3i.

Then, the function is:

f(x) = a(x + 2)(x - 5)(x + 3i)(x - 3i)

f(x) = a(x^2 - 3x - 10)(x^2 + 9)

f(x) = a(x^4 - 3x^3 - x^2 - 27x - 90)

To learn more about the Factor Theorem, you can take a look at brainly.com/question/24380382

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Answer:

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Step-by-step explanation:

2/3(x+6)=-18

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Third option!
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