I need to find all complex number z

Alan Zavala

Alan Zavala

Answered question

2022-04-07

I need to find all complex number z such that z2+(77i)z+49i=0 while using the quadratic formula. I’ve got z=(7+7i)±147i2 and then I don’t know what to do next. Can anyone help?

Answer & Explanation

Frain4i62

Frain4i62

Beginner2022-04-08Added 16 answers

You should have
z=(7+7i)±98i2=7+7i±72i2=7+7i±7(1i)2=7  or  7i

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