
Applied Math Applied Math Forum 
 LinkBack  Thread Tools  Display Modes 
February 14th, 2017, 09:05 PM  #1 
Banned Camp Joined: Aug 2011 Posts: 534 Thanks: 2  Quadratic equations having complex numbers.
Can we have Quadratic equations having complex numbers? Thanks & Regards, Prashant S Akerkar 
February 14th, 2017, 09:20 PM  #2 
Senior Member Joined: Sep 2007 From: USA Posts: 349 Thanks: 67 Math Focus: Calculus 
Sure. Consider $ix^2(1+i)x+2=0$. It has solutions $\displaystyle x=\frac{\left( \sqrt{2}\,\sqrt{6}2\right) i+\sqrt{2}\,\sqrt{6}+2}{4},x=\frac{\left( \sqrt{2}\,\sqrt{6}+2\right) i+\sqrt{2}\,\sqrt{6}2}{4}$.

February 14th, 2017, 09:27 PM  #3 
Senior Member Joined: Sep 2015 From: CA Posts: 1,300 Thanks: 664  

Tags 
complex, equations, numbers, quadratic 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
complex numbers  find & plot cartesian equations of loci  infamous  Calculus  2  April 5th, 2016 04:01 PM 
Complex Numbers: Quadratic Equations  cool908  PreCalculus  6  March 2nd, 2015 07:12 PM 
Simultaneous equations involving complex numbers?! STRESSS!!  queenie_n  Complex Analysis  5  October 17th, 2012 05:20 PM 
Check answers, please...quadratic and complex numbers  oti5  Algebra  3  March 18th, 2012 12:33 PM 
Complex Numbers and the Quadratic Formula  FishFace  Complex Analysis  4  March 31st, 2011 08:32 PM 