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

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

User Zach Mast
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1 Answer

2 votes

Answer:

Explanation:


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

User Onur Uslu
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