What is the answer to (x+yi)=-8 ?

The answer to (x+yi)=-8 is x=-8,y=0

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(x+yi)=-8

(x + y i) = - 8

x = - 8, y = 0

Solution steps

(x + y i) = - 8

Rewrite

(x + y i)

in standard complex form:

x + y i

x + y i = - 8

Rewrite

- 8

in standard complex form:

- 8 + 0 i

x + y i = - 8 + 0 i

Complex numbers can be equal only if their real and imaginary parts are equalRewrite as system of equations:

[x = - 8 y = 0]

[x = - 8 y = 0] : x = - 8, y = 0

x = - 8, y = 0

x, S i z = \frac{x y}{x + y}

- 5 x + 3 i y = 10 - 9 i

z^{2} - (3 + 6 i) z - (9 - i) = 0

(x - 5 + 2 i) (x + 5 + 2 i) = x^{2} + 20 i + 4

s i f (x) = x^{2} - 1, g (x) = x^{2} + x