3 − 8 + 4 − 50 = 3 i 8 + 4 i 50 = 3 i 4 × 2 + 4 i 25 × 2 = 6 i 2 + 20 i 2 = 26 i 2
I think part of the second question is cut off so I can't help but I hope I have helped with the first one.
To simplify 3 − 8 + 4 − 50 , rewrite using imaginary numbers: 3 − 8 = 6 i 2 and 4 − 50 = 20 i 2 , combine them to get 26 i 2 .
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