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Simora [160]
3 years ago
8

Z2 = (3-2i ) (5-4i) Z1=(5-4i) (3-2i)

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
8 0
Hello : 
<span>Z2 = (3-2i ) (5-4i) 
    = 15 -12i -10i -8...... ( i² = -1)
</span>Z2 = 7 -22 i

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I need someone to check these answers ASAP.
Reptile [31]

Alright, 1, 2, and 4 are correct but 3 is not.

The error you made could be hard to notice but it was made. So let's put the equation up, 6x-(2x-9)=-31. Your error occurred when you didn;t distribute the negative sign for (2x-9), if you woud have distributed it then the equation would then be simplified into 6x-2x+9=31. You then add like terms and get 4x+9=31, subtract 9 on both sides and you'll get 4x=22. Divide 4 on both sides to isolate the variable and you get x=5.5

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