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Write the polynomial in standard form given the following zeros. Show all work. (hint; the polynomials are of degree 3) 1. x = -3i, x=2 2. x = 3(multiplicity 2), x = -1 Please show work I need it please
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Feb 16, 2022
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Write the polynomial in standard form given the following zeros. Show all work.
(hint; the polynomials are of degree 3)
1. x = -3i, x=2
2. x = 3(multiplicity 2), x = -1
Please show work I need it please and thanks fir Hu ever answers it
Mathematics
high-school
Ryan Soderberg
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Answer:
x³ - 2x² + 9x - 18
x³ - 5x² + 3x + 9
Explanation:
1.
Zero's
x = -3i, x = 2 and the third zero is x = 3i
Polynomial is:
(x + 3i)(x - 3i)(x - 2) =
(x² - 9i²)(x - 2) =
(x² + 9)(x - 2) =
x³ - 2x² + 9x - 18
2.
Zeros:
x = 3, x = 3, x = -1
Polynomial is:
(x - 3)(x - 3)(x + 1) =
(x² - 6x + 9)(x + 1) =
x³ + x² - 6x² - 6x + 9x + 9 =
x³ - 5x² + 3x + 9
NewbieMACuser
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Feb 22, 2022
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NewbieMACuser
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