KolbeyF445021 KolbeyF445021
  • 25-10-2022
  • Mathematics
contestada

Which is the value of x2 - 6x + 9 when x = 2 + i?

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MalenaP511669 MalenaP511669
  • 25-10-2022
[tex]x^2-6x+9[/tex][tex]\begin{gathered} x=2+i \\ so\colon \\ (2+i)^2-6(2+i)+9 \end{gathered}[/tex][tex]3+4i-12-6i+9[/tex]

add like terms:

[tex]\begin{gathered} (3+9-12)+(4i-6i) \\ 0-2i \\ -2i \end{gathered}[/tex]

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