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19-08-2021
Mathematics

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What's (6+5i)(6-5i) using the foil method

Respuesta :

19-08-2021

Answer:

Step-by-step explanation:

[tex]Remember:\\(a+b)(a-b)=a^2-b^2\\\\(6+5i)(6-5i)=6^2-(5i)^2=36-(-1)*25=36+25=61\\[/tex]

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