Results 1 to 5 of 5

Thread: Exponents/Quotients : Plz Help!!!!!!!!!!!

  1. #1
    Junior Member lillybeth's Avatar
    Join Date
    Nov 2012
    Location
    Lala land but i wanna move to N.Y.
    Posts
    211

    Question Exponents/Quotients : Plz Help!!!!!!!!!!!

    Hello everyone!!! I'm learning about exponents and quotients in Algebra and I've had these before and they were usually pretty basic. Now the problems are starting to get a little more complicated, and I'm having some trouble understanding what I'm supposed to be doing.

    One of the homework questions looks like this:
    1. Simplify, leaving each answer in positive exponential form.
    ax^2 / cx^2
    b^2y by^3


    (by the way I'm using ^2 = squared)


    I really don't know where to start..... I missed a few days of school and a very important lesson. Please help me!!! I have a test in a few days.

    Can someone please just maybe tell me what the first few steps would be? Thanks!!
    Last edited by lillybeth; 02-10-2015 at 06:33 PM.
    "If you believe in something, believe in it all the way, implicitly and unquestionably." - Walt Disney

  2. #2
    Elite Member
    Join Date
    Jul 2014
    Posts
    3,345
    Quote Originally Posted by lillybeth View Post
    Hello everyone!!! I'm learning about exponents and quotients in Algebra and I've had these before and they were usually pretty basic. Now the problems are starting to get a little more complicated, and I'm having some trouble understanding what I'm supposed to be doing.

    One of the homework questions looks like this:
    1. Simplify, leaving each answer in positive exponential form.
    ax^2 / cx^2
    b^2y by^3


    (by the way I'm using ^2 = squared)


    I really don't know where to start..... I missed a few days of school and a very important lesson. Please help me!!! I have a test in a few days.

    Can someone please just maybe tell me what the first few steps would be? Thanks!!
    Could you restate the question with some grouping symbols please? For example, I'm not sure whether there is just one expression or two. If two, it might be
    a x^2 / (c x^2)
    and
    b^2 y / (b y^3)
    but I'm unsure of that.
    Last edited by Ishuda; 02-10-2015 at 07:06 PM.

  3. #3
    Junior Member lillybeth's Avatar
    Join Date
    Nov 2012
    Location
    Lala land but i wanna move to N.Y.
    Posts
    211

    Quote Originally Posted by Ishuda View Post
    Could you restate the question with some grouping symbols please? For example, I'm not sure whether there is just one expression or two. If two, it might be
    a x^2 / (c x^2)
    and
    b^2 y / (b y^3)
    but I'm unsure of that.
    Yes!

    What I was trying to say was ax^2 / b^2y divided by cx^2/by^3.
    If that makes it any easier to understand.
    "If you believe in something, believe in it all the way, implicitly and unquestionably." - Walt Disney

  4. #4
    Elite Member
    Join Date
    Jul 2014
    Posts
    3,345
    Quote Originally Posted by lillybeth View Post
    Yes!

    What I was trying to say was ax^2 / b^2y divided by cx^2/by^3.
    If that makes it any easier to understand.
    [tex]\dfrac{\dfrac{a x^2}{b^2 y}}{\dfrac{c x^2}{b y^3}}[/tex]

    O.K.
    First Rule: when dividing by a fraction, invert the fraction and multiply. For example
    [tex]\dfrac{1}{\dfrac{a}{b}} = {1}\, *\, \dfrac{b}{a} = \dfrac{b}{a}[/tex]

    Second Rule: You can change the sign of the exponent by moving it from the numerator to the denominator or vice versa. For example
    1/25 = 2-5
    39 = 1 / 3-9

    Third Rule: if the base is the same multiplying by numbers is the same as adding exponents. For example
    (22 212 / (214 2-10) = 22 212 2-14 210 by the Second Rule
    = 22+12-14+10 = 210

    That should be enough for this problem but you should study up on the rules for exponents. For example, see
    http://www.mathsisfun.com/algebra/exponent-laws.html

  5. #5
    Junior Member lillybeth's Avatar
    Join Date
    Nov 2012
    Location
    Lala land but i wanna move to N.Y.
    Posts
    211
    Quote Originally Posted by Ishuda View Post
    [tex]\dfrac{\dfrac{a x^2}{b^2 y}}{\dfrac{c x^2}{b y^3}}[/tex]

    O.K.
    First Rule: when dividing by a fraction, invert the fraction and multiply. For example
    [tex]\dfrac{1}{\dfrac{a}{b}} = {1}\, *\, \dfrac{b}{a} = \dfrac{b}{a}[/tex]

    Second Rule: You can change the sign of the exponent by moving it from the numerator to the denominator or vice versa. For example
    1/25 = 2-5
    39 = 1 / 3-9

    Third Rule: if the base is the same multiplying by numbers is the same as adding exponents. For example
    (22 212 / (214 2-10) = 22 212 2-14 210 by the Second Rule
    = 22+12-14+10 = 210

    That should be enough for this problem but you should study up on the rules for exponents. For example, see
    http://www.mathsisfun.com/algebra/exponent-laws.html

    Thanks!!!!!!!!
    "If you believe in something, believe in it all the way, implicitly and unquestionably." - Walt Disney

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •