(-1 + 3*i)*(2 - 5*i) решите пж

Question

(-1 + 3*i)*(2 - 5*i) решите пж

Answer 1

-2 + 6i + 5i - 15i² = -2 + 11i + 15 = 13 + 11i

Answer 2

-2+5i+6i+15=11i+13
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