Question

show that the equation z^3+2z^-=0 has five solution
$show \: that \: the \: equation \: {z ^{3} + 2z^{ - } = 0 \: has \: five \: solution$
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Answer 1

Answer:

Given that z3 + 2z bar = 0 z3 = -2z bar …….

(1) Taking modulus on both sides z has four non-zero solution. Hence including zero solution. There are five solutions.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

see this attachment hope it's help you