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xz_007 [3.2K]
2 years ago
9

Need help pls!!!! Algebra

Mathematics
1 answer:
PtichkaEL [24]2 years ago
6 0

Answer:

11

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

(11+5i)(11-5i)

The formula is :

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and since  i^2 = -1  it can be written as :

ax - by + (ay + bx) i

( 11 +  5i) • ( 11 -  5i) =

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