Write a 5th degree polynomial that has an x intercept = -3, a root x = 1 with multiplicity of 2 and a factor of (x + 2i). Sketch the polynomial.

Trevor Rush

Trevor Rush

Answered question

2022-08-08

Write a 5th degree polynomial that has an x intercept = -3, a root x = 1 with multiplicity of 2 and a factor of (x + 2i). Sketch the polynomial.

Answer & Explanation

Malcolm Good

Malcolm Good

Beginner2022-08-09Added 14 answers

P9x) = (x+3)(x-1)^2 (x+2i)(x-2i) = (x+3)(x-1)^2(x^2+4) =
x^5 + x^4 - x^3 + 7x^2 - 20x + 12

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