sarahtoddxx sarahtoddxx

11-03-2022
Mathematics

contestada

Find a polynomial equation with real coefficients that has the given roots.
3 and -9i

x^3-?x^2+?x-?=0

Respuesta :

zsm2800 zsm2800

16-03-2022

Answer:

Step-by-step explanation:

(x - 3) (x - 9i) (x + 9i) = 0

(x - 3) (x² + 81) = 0

x³ - 3x² + 81x - 243 = 0

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