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30 June, 07:26

What are the solutions of the equation Z ^ 2 - 6z - 27 equals 0

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  1. 30 June, 11:21
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    Z^2 - 6z - 27 = 0 you need to factor out firts then solve for z

    (z+3) (z-9) = 0

    z + 3 = 0

    z = - 3

    z-9 = 0

    z = 9
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