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    lemon14's Avatar
    lemon14 Posts: 143, Reputation: 9
    Junior Member
     
    #1

    Nov 13, 2010, 09:20 AM
    Complex numbers equation
    How to solve with complex numbers?
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
     
    #2

    Nov 13, 2010, 10:04 AM

    We can factor just like we would a regular old quadratic.



    What two numbers when multiplied equal -10i and when added equal -5+2i?

    How about 2i and -5?



    Group and factor





    What values of x make

    ?

    Difference of two squares:



    What values of x make

    ?

    Factor:


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