How to find the complex numbers w in w^2-1=20(1-i)? please show the working out

[mathsenjoy]

How to find the complex numbers w in w^2 - 1 = 20(1 - i)?

i need the answer in a+bi format, i am really struggling

please show the working out

 

[stapel]

How to find the complex numbers w in w^2 - 1 = 20(1 - i)?

i need the answer in a+bi format, i am really struggling

please show the working out

The "showing" is what we need *you* to do. So please re-read the "Read Before Posting" message, and reply with the requested information (that is, with a clear listing of your thoughts and efforts so far). It would probably help if you could tell us recent topics of study, such as solution techniques, so we can have an idea of what you're expected to be doing.

Thank you!

Eliz.

 

[Steven G]

Solve this quadratic equation in the same way you'd solve any other quadratic equation.

 

[khansaheb]

How to find the complex numbers w in w^2 - 1 = 20(1 - i)?

i need the answer in a+bi format, i am really struggling

please show the working out

Follow the process in

How to solve w^2=-3-4i

Ok so i have gotten as far to get the correct answers and used the quadratic equation. What i dont understand is how the final answer is w=1-2i or w=-1+2i why is it in the answers one number becomes postive and the other negative??? like in w=1-2i why is 1 positive and why is 2 negative I...

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