Results 1 to 3 of 3

Math Help - Simplify

  1. #1
    Newbie
    Joined
    Sep 2009
    Posts
    4

    Simplify

    This Question came up in a test i did today
    (X+3)(X+2)(X+1)

    What i did was multiply out the first two brackets

    X + 5x + 6

    then i tried

    (X+5x+6)(X+1)

    X + 5x then i get confused since i dont know what to multiply 6 by


    X + 5x i can also work this bit out but i have no idea whats next.

    So X+X+5x+5x is what i got so far which can be simplified to X+5X to the power of 4 + 5x
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Oct 2009
    Posts
    79
    (X + 5X + 6)(X + 1)

    = X + X + 5X + 5X + 6X + 6
    = X + 6X + 11X + 6

    Multiply 6 by x and 1 just like the rest of them.

    r2
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,236
    Thanks
    28
    Quote Originally Posted by ZeroPunk View Post
    This Question came up in a test i did today
    (X+3)(X+2)(X+1)

    What i did was multiply out the first two brackets

    X + 5x + 6

    then i tried

    (X+5x+6)(X+1)
    (x^2+5x+6)(x+1)

    x^2\times x+5x\times x+6\times x+x^2\times 1+5x\times 1+6\times 1

    x^3+5x^2+6x+x^2+5x+6

    group like terms

    x^3+6x^2+11x+6
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. simplify #2
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: September 21st 2009, 03:37 PM
  2. Please simplify
    Posted in the Trigonometry Forum
    Replies: 4
    Last Post: April 27th 2009, 05:32 AM
  3. Can you simplify this further?
    Posted in the Algebra Forum
    Replies: 4
    Last Post: April 23rd 2009, 07:45 AM
  4. Simplify
    Posted in the Algebra Forum
    Replies: 2
    Last Post: April 12th 2009, 06:06 AM

Search Tags


/mathhelpforum @mathhelpforum