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andrew-mc [135]
3 years ago
6

Simplify (7-5i)(-3+9i)-(5+6i)^2

Mathematics
1 answer:
pshichka [43]3 years ago
8 0
(-21 + 63i + 15i - 45i^2) - (25 + 60i + 36i^2) =

(-21 + 78i + 45) - (-11 + 60i) =

24 + 78i - 60i + 11 =

35 + 18i
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Please help me! I am really struggling with this...
Alexeev081 [22]

Answer:

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