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-   -   Factor fully (https://www.askmehelpdesk.com/showthread.php?t=335858)

  • Mar 30, 2009, 01:33 PM
    Datsybb55
    Factor fully
    72y2-98
  • Mar 30, 2009, 01:35 PM
    Datsybb55

    determine the x-y-intercepts of the graph of each function y=x2-5xt4
  • Mar 31, 2009, 06:30 AM
    galactus
    Quote:

    Originally Posted by Datsybb55 View Post
    72y2-98

    I assume this is

    First, note that if you divide 72 and 98 by 2, you have two perfect squares.

    So, factor out a 2:



    Now, see inside the parentheses? It is the difference of two squares.

    I assume you know that factorization? It is,

    Can you finish now? Let me know if you remain stuck.
  • Mar 31, 2009, 06:33 AM
    galactus
    Quote:

    Originally Posted by Datsybb55 View Post
    determine the x-y-intercepts of the graph of each function y=x2-5xt4

    What is this? Please do a preview before you post, so that you know it is displaying correctly or that you typed it correctly.

    Is this it:



    If so, to find the x intercepts, then y must be equal to 0. Set y=o and solve for x bt factoring or using the quadratic formula.

    For that matter, just graph it and look at the intercepts.

    To find the y intercepts, set x=0.s an aside, just use ^ when you want an exponent.

    Just writing x2 looks like you want to multiply x by 2.

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