Results 1 to 2 of 2

Math Help - Complex/imaginary numbers?

  1. #1
    Newbie
    Joined
    Aug 2009
    Posts
    2

    Lightbulb Complex/imaginary numbers?

    Okay so im taking this online test and i have no idea what to do, i think i am right so far though but i don;'t know what to do next




    z1=3+4i
    z2=(-4-7i
    z3=-6+3i

    To solve:
    z1*(z2+z3)





    so far ive done the right side because im pretty sure you have to do that side first and im at...
    3+4*[(-4-7i)+(6+3i)]
    -10-4i^2
    -10-4(-1)
    -10+4
    -6

    so am i doing this right, if im not then can someone please help me out? lol, with work shown thanks a lot!=]
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Rhymes with Orange Chris L T521's Avatar
    Joined
    May 2008
    From
    Chicago, IL
    Posts
    2,844
    Thanks
    3
    Quote Originally Posted by NiKKname View Post
    Okay so im taking this online test and i have no idea what to do, i think i am right so far though but i don;'t know what to do next




    z1=3+4i
    z2=(-4-7i
    z3=-6+3i

    To solve:
    z1*(z2+z3)





    so far ive done the right side because im pretty sure you have to do that side first and im at...
    3+4*[(-4-7i)+(6+3i)]
    -10-4i^2
    -10-4(-1)
    -10+4
    -6

    so am i doing this right, if im not then can someone please help me out? lol, with work shown thanks a lot!=]
    It is against MHF policy to ask for help on assignments that count for a final grade (i.e. tests, quizzes, etc.).

    However, if you can post a similar problem, we can help you out.

    Thread closed.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Imaginary numbers
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: March 6th 2010, 02:54 AM
  2. Replies: 2
    Last Post: December 9th 2009, 03:14 PM
  3. Imaginary numbers/complex numbers
    Posted in the Algebra Forum
    Replies: 7
    Last Post: August 25th 2009, 11:22 AM
  4. imaginary numbers help!!!
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: February 24th 2009, 06:53 PM
  5. Complex Numbers- Imaginary numbers
    Posted in the Algebra Forum
    Replies: 2
    Last Post: January 24th 2007, 12:34 AM

Search Tags


/mathhelpforum @mathhelpforum