Results 1 to 4 of 4

Thread: Need to impress my dad(Who's a math teacher)

  1. #1
    Newbie
    Joined
    Dec 2010
    Posts
    2

    Need to impress my dad(Who's a math teacher)

    Someone please help me work out these problems, I'm supposed to find the zeros of each function.
    f(x)=x^2-7x

    f(x)+x^2-9x+20

    Also how would I complete the square for this expression?

    x^2-15x+?
    Please help I'd appreciate it,have to impress my math teacher of a dad.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Mar 2010
    From
    Florida
    Posts
    3,093
    Thanks
    10
    Quote Originally Posted by newbies View Post
    Someone please help me work out these problems, I'm supposed to find the zeros of each function.
    f(x)=x^2-7x

    f(x)+x^2-9x+20

    Also how would I complete the square for this expression?

    x^2-15x+?
    Please help I'd appreciate it,have to impress my math teacher of a dad.
    1 factor out the x

    2 try factoring if not quadratic equation

    3 \displaystyle x^2\pm bx+\left(\frac{b}{2}\right)^2=\left(\frac{b}{2}\ri  ght)^2 then \displaystyle\left(x\pm\frac{b}{2}\right)^2=\left(  \frac{b}{2}\right)^2

    4 Ask your dad for help. He will be proud that you are working to have a better understanding of fundamental concepts.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Dec 2010
    Posts
    2
    You'd think that but I've been procrastinating lately, and like my Algebra 200 grades been slipping so he basically gave me a book and a list of questions these were the final three questions and I was trynna get them all right,m at least I thought so but asking my dad isn't a option. But cheating isn't either, thanks for the advice, I'll turn it in as is.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    9
    Quote Originally Posted by newbies View Post
    [snip] But cheating isn't either, thanks for the advice, I'll turn it in as is.
    Good. Because MHF is not a service for providing answers that are intended to impress other people and are a substitute for lack of effort.

    Thread closed.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: Oct 19th 2011, 01:31 PM
  2. “Please teacher why should I do Maths”
    Posted in the Math Topics Forum
    Replies: 4
    Last Post: Jul 3rd 2009, 09:52 AM
  3. Math teacher trying to be funny
    Posted in the Calculus Forum
    Replies: 2
    Last Post: May 18th 2008, 06:09 PM
  4. Teacher cant even do this.......
    Posted in the Calculus Forum
    Replies: 2
    Last Post: Mar 31st 2008, 04:43 AM
  5. A mistake by my teacher?
    Posted in the Calculus Forum
    Replies: 6
    Last Post: Dec 1st 2007, 05:07 AM

Search Tags


/mathhelpforum @mathhelpforum