Results 1 to 3 of 3

Math Help - find the missing factor

  1. #1
    Newbie
    Joined
    Mar 2006
    Posts
    14

    find the missing factor

    how do i do this problem

    find the missing factor 7m2 times (?) = 35m8 -28m5 -42m2
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    10
    Quote Originally Posted by jim1174
    how do i do this problem

    find the missing factor 7m2 times (?) = 35m8 -28m5 -42m2
    I understand the problem as,
    7m^2 (?)=35m^8-28m^5-42m^2
    On the right side you get 35m^8 thus, which number when multiplied by 7m^2 gives 35m^8? The answer is 5m^6. Now on the right side you also have -28m^5 now which number when multiplied by 7m^2 gives -28m^5? The answer is -4m^3. Now on the right side you also have -42m^2 now which number multiplied by 7m^2 gives -42m^2? The answer is -6 Thus, you have,
    7m^2(5m^6-4m^3-6)=35m^8-28m^5-42m^2
    Thus, the answer is,
    5m^6-4m^3-42
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Nov 2005
    From
    Wethersfield, CT
    Posts
    92
    I saw this, as well as the two preceding threads re. factoring, verbatim, on another site. Interestingly, that membership provided guidance all but equal to the thorough work presented here by PHckr. ...just a thought...

    Rich B
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Find the missing factor
    Posted in the Algebra Forum
    Replies: 3
    Last Post: March 15th 2010, 02:11 PM
  2. Finding the missing Factor
    Posted in the Algebra Forum
    Replies: 1
    Last Post: March 6th 2009, 01:10 PM
  3. Factor and Simplify: I'm missing a step!
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: March 15th 2008, 08:49 PM
  4. Find the missing value
    Posted in the Math Challenge Problems Forum
    Replies: 3
    Last Post: February 10th 2008, 11:37 AM
  5. Finding the missing factor....(help pls)
    Posted in the Algebra Forum
    Replies: 1
    Last Post: November 24th 2007, 08:16 AM

Search Tags


/mathhelpforum @mathhelpforum