jayblakey19 jayblakey19

10-11-2020
Mathematics

contestada

What are the factors of
x²+81

plz help me

Respuesta :

surjithayer10 surjithayer10

11-11-2020

Answer:

Step-by-step explanation:

x²+81=0

x²-(-81)=0

x²-(81×-1)=0

x²-81i²=0

x²-(9i)²=0

x²=(9i)²

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

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