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8i(8-7i)= 64i-56i is this the correct answer?, if not why? please explain...
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by Ninon001 at July 30, 2011

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8i(-7i) = -56(i^2)But, i^2 = -1, so-56(i^2) = -56(-1) = 56Hope that helps

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Steve204 July 30, 2011