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Mathematics 8 Online
OpenStudy (dcolley):

Simplify (x-6-5i)(x-6+5i)

OpenStudy (anonymous):

Keep in mind i = (-1)^1/2 So: Doing this the long way, x^2 -6x + 5ix -6x + 36 - 30i - 5ix + 30i - 25* (-1) Combining terms... x^2 -12x +25 = 0

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