Question #c9838

2 Answers
Gió
Aug 14, 2015

Have a look:

Explanation:

I used the Quadratic Formula to solve your equation:
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dani83
Aug 14, 2015

z^2 + az + b = 0

If z_1 and z_2 are solutions, then:
(z - z_1)(z - z_2) = 0
z^2 - (z_1 + z_2)z +z_1z_2 = 0

Equation coefficients:
z_1z_2 = b
z_1 + z_2 = -a

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