complex numbers

[night crest]

I can't figure out how to do this. In the pic of my workings it's question a but they all pose the same problem

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[icy pasture]

can you not use quadratic formula

or does it give reals

[night crest]

Quadratic gives like i√smthn

[icy pasture]

that’s complex

[night crest]

Yes it is

But why doesn't my way work

[icy pasture]

for #1 specifically you can just isolate z

idk you somehow made the imaginary equal to 0

[night crest]

So all I have to do is keep z and then just convert it to a+ib at the end?

[icy pasture]

yea

[night crest]

Ight thanks then

[cinder thunder]

@night crest has given 1 rep to @icy pasture

[night crest]

+close