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complex question. (1 Viewer)

kev-

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Solve completely x^2+16 = 30i

This question looks so frustratingly easy, but I have no ideas. Any help?
 

nightweaver066

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Rearrange to x^2 = -16 + 30i

Let x = a + ib, expand LHS and equate real & imaginary terms/coefficients.

Simultaneous equations to get values for a and b

Edit: Wow, 2014 graduate? You're sure getting ahead
 

kev-

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wow fast replies! thanks for the help. I don't know what "find the square roots be", but I understand nightweaver's explanation. I've just started 4unit today, so hopefully I'll be alright. Lol
 

nightweaver066

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wow fast replies! thanks for the help. I don't know what "find the square roots be", but I understand nightweaver's explanation. I've just started 4unit today, so hopefully I'll be alright. Lol
It is technically finding the square roots.





Good luck and have fun with 4U :)
 

umm what

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wow fast replies! thanks for the help. I don't know what "find the square roots be", but I understand nightweaver's explanation. I've just started 4unit today, so hopefully I'll be alright. Lol
Nightweaver explained 'finding square roots' lol
 

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