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Challenge:Complex reducible to quadratic equation: Solve z4+2(a2b2)z2+(a2+b2)2=0 where a,bR

Solve z4+2(a2b2)z2+(a2+b2)2=0 where a,b are real numbers.

Hint 1 : Put w=z2 and find w first.  Then for each w, solve z2=w.

Hint 2: see other posts on this label.




























Answer: z=±(a+ib),±(aib)

Complex reducible to quadratics equation: Solve z4+16z2+100=0 .

Question: Solve z4+16z2+100=0 .

Show the answers are z=±(1+3i),±(13i)  .

Complex reducible to quadratic equation: Solve z4+12z2+169=0

 



































Try solving this one now

z4+16z2+100=0 and show the solutions are ....https://dipa2023t2.blogspot.com/2023/06/complex-reducible-to-quadratics.html

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