Matrix algebra - matrix equation

  1. A=(5, 4) I (1, 0)
    (4,6) (0,1)

    Those are matrix by the way.

    How do I show A^2=11A-18I? I know i'm overlooking something, but i don't know what. Any tips would be helpful
     
  2. jcsd
  3. ah im sorry, I meant to put this in the question section, please move!
     
  4. radou

    radou 3,215
    Homework Helper

  5. matt grime

    matt grime 9,395
    Science Advisor
    Homework Helper

    Let me ask you this.

    Let x=3. How do you show that x^2=2x+3?
     
Know someone interested in this topic? Share a link to this question via email, Google+, Twitter, or Facebook

Have something to add?