i is the constant for the imaginary unit.
i ^2 = -1
and therefore i = squareroot of -1
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answer is 7i, since its the same thing as: i + (i + i + i + i + i + i)
(4 + 6i)*(-7) = -28 - 42iAnd just because i = sqrt(-1), I am not something that you can multiply or simplify.
x2 + 24x +180 = 0 By using the quadratic equation, you can find that x = -12 + 6i or x = -12 - 6i
A complex number is x+iy and -6i is 0-6i or 0-i6 I would then answer yes.
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