Mathematics, 09.10.2020 01:01 eddyy5900

Which values of x and y would make the following expression represent a real number? (4 + 5i)(x + yi) x = 4, y = 5 x = –4, y = 0 x = 4, y = –5 x = 0, y = 5

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Which values of x and y would make the following expression represent a real number? (4 + 5i)(x + yi...