Results 1 to 2 of 2
  1. #1
    MagixAries's Avatar
    Join Date
    Dec 2011
    Gender
    male
    Location
    18th Gate
    Posts
    676
    Reputation
    78
    Thanks
    330
    My Mood
    Angelic

    Question ALGEBRA 1 FACTORING HELP!! -CALLING ALL SMART PPL-

    Please help me with these Algebra 1 problems!! Please show how you did it and why becuz Im really bad at Algebra and needs step-by-step help! >.<"

    Factor each Expression.
    1) 100v^2 - 25w^2
    2) 28c^2 + 140cd + 175d^2
    3) x^2 + x + 1/4
    4) 64t^2 - 192gh + 144h^2
    5) 1/25k^2 + 6/5k + 9

    PLEASE SHOW YOUR WORK & WHY U DID EACH STEP PLEASE!! IM REALLY CONFUSED IN THIS TRINOMIAL FACTORING STUFF! THANKS A WHOLE BUNCH!!
    "You said 'I love you', and I said too.
    The only difference is, I didn't lie to you."

    Successful Trades: 204
    Middle Man'd: 67
    BLACKLIST:
    Stevie9090, ProHackTB, combatarms1993, sp33dkill3r,
    Markalot, Yomo710, -Nice-, kernie891
    /Add me on MSN \: x7sinsx@live.com

  2. #2
    Alen's Avatar
    Join Date
    Oct 2007
    Gender
    male
    Location
    Liquid Generator
    Posts
    27,930
    Reputation
    2539
    Thanks
    4,216
    My Mood
    Fine
    1) 100v^2 - 25w^2
    > difference of squares
    > (10v)^2-(5w)^2
    > (10v-5w)(10v+5w)
    2) 28c^2 + 140cd + 175d^2
    > 7(4c^2+20cd+25d^2)
    > 25 can only be the product of 5*5 or 1*25, getting 20cd is easier with 5*5 (2*(2*5))
    > 7(2c+5d)^2
    3) x^2 + x + 1/4
    > (x+1/2)^2
    4) 64t^2 - 192gh + 144h^2
    > assuming that t=g (typo?), pretty evident that 64 = 8^2, -192 = 2*8*(-12) and (-12)^2=144
    > (8t-12h)^2
    5) 1/25k^2 + 6/5k + 9
    > to make it easier, factor out 1/25
    > 1/25(k^2+30k+225)
    > pretty evident that 15^2=225 and 2*15 = 30
    > 1/25 * (k+15)^2

    You'll probably want to take a look at this: Vieta's formulas - Wikipedia, the free encyclopedia

  3. The Following User Says Thank You to Alen For This Useful Post:

    MagixAries (05-07-2012)

Similar Threads

  1. CALLING ALL INTELLIGENT BEINGS! Urgent MATH HELP!
    By MagixAries in forum General
    Replies: 4
    Last Post: 03-14-2012, 05:13 PM
  2. [Help Request] Help with all bots.
    By coldkiller66 in forum Vindictus Help
    Replies: 2
    Last Post: 07-27-2011, 03:32 AM
  3. [Help Request] Help on all hacks....
    By spookyskunkk in forum Combat Arms Help
    Replies: 3
    Last Post: 05-22-2011, 01:55 AM
  4. [Help]Calling all Super Advanced VB Coders
    By kunal1212 in forum Visual Basic Programming
    Replies: 27
    Last Post: 02-17-2011, 11:19 PM
  5. Replies: 5
    Last Post: 09-14-2009, 01:09 PM