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Math Help - Algebra

  1. #1
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    Algebra

    Thanks for taking time to assist me with simplifying the following:
    1. (5h -2m)^2
    2. x/y divide 3x/h
    3. 1/3xy * y * 6x
    4. 6mx^2 divide 2mx
    5. 18a(2b-c) divide 6(2b -c)
    As you can see, I really have no idea with algebra. Thanks heaps.
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  2. #2
    Moo
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    Hello,

    Quote Originally Posted by Risrocks View Post
    Thanks for taking time to assist me with simplifying the following:

    (5h -2m)^2
    Use the identity : (a-b)^2=a^2-2ab+b^2

    x/y divide 3x/h
    \frac{\frac{3x}{h}}{\frac xy}=\frac y{\color{red}x} \cdot \frac{3{\color{red}x}}{h}=\dots

    1/3xy * y * 6x
    I guess it is :

    \frac{1}{3xy} \cdot y \cdot 6x=\frac{2 \cdot {\color{magenta}3} \cdot {\color{blue}x} \cdot {\color{red}y}}{{\color{magenta}3} \cdot {\color{blue}x} \cdot {\color{red}y}}=\dots




    Always try to see what can simplify above and below, and it should be ok !
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  3. #3
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    Thanks so much ... I'm understanding the equations once simplified.
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