Question

(z + 3) (2-3) - z (z +5) = 6​

Answer 1

Answer:

$- 1(z + 3) - z(z + 5) = 6 \\ - z - 3 - z {}^{2} - 5z = 6 \\ z {}^{2} + 6z + 9 = 0 \\ z {}^{2} + 3z + 3z + 9 = 0 \\ z(z + 3) + 3(z + 3) \\ (z + 3)(z + 3) \\ z + 3 = 0 \\ z = - 3$

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Answer 2

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