Results 1 to 3 of 3

Math Help - Simplifications

  1. #1
    Newbie
    Joined
    May 2011
    From
    Sounthern Indiana
    Posts
    1

    Exclamation Simplifications

    Any help with these problems would be greatly appreciated. I need all the help I can get.

    1) Simplify (2x+3)(x-4)
    2) Solve 7 x (-3) x (-2)^2
    Last edited by Ackbeet; May 21st 2011 at 07:25 PM. Reason: Way too many problems in a single thread. To the OP: Re-post other problems, at most 2 per thread.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,236
    Thanks
    29
    for the first one follow this (a+b)(c+d) = ac+ad+bc+bd

    What do you get?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Senior Member
    Joined
    Nov 2010
    From
    Staten Island, NY
    Posts
    451
    Thanks
    2
    Solve 7 x (-3) x (-2)^2

    Remember to follow the Order of Operations: PEMDAS.

    So the exponentiation should be done first here, followed by the multiplications.

    Remember that squaring a number is the same as multiplying it by itself. So when you square -2, you get (-2)(-2)=4.

    Can you finish?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Simplifications
    Posted in the Algebra Forum
    Replies: 1
    Last Post: July 23rd 2005, 09:27 PM

Search Tags


/mathhelpforum @mathhelpforum