cha2244675 cha2244675

24-03-2020
Mathematics

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PLEASE HELP thanks so much:)

PLEASE HELP thanks so much class=

Respuesta :

24-03-2020

Answer:

Step-by-step explanation:

[tex](-3\sqrt{-81})(-5 + \sqrt{-9}) + 9i[/tex]

[tex](-3 * 9i)(-5 + 3i) + 9i[/tex]

[tex]-27i(-5 + 3i) + 9i[/tex]

[tex]135i - 81i^{2} + 9i[/tex]

[tex]81 + 144i[/tex]

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