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9th grade algebra

posted by on .

This is for my daughter.

find the product of

x^2 -4/5 X x + 2/x - 2

could you please show us the work so we can try to understand how it works?

  • 9th grade algebra - ,

    [(x^2-4)/5] * (x+2)/(x-2) ??? maybe???

    (x+2)(x-2)/5 * (x+2)/(x-2)

    (x+2)^2 /5
    or
    (x^2 + 4 x + 4)/5

  • 9th grade algebra - ,

    Use parentheses to make things easier.

    [(x^2)-(4x/5)]*[(2/x)-2]

    [(x^2)*5/5-(4x/5)]*[(2/x)-2*x/x)

    (5x^2-4x) * (2-2x)
    --------- ----
    5 * x

    Multiply through to get:

    10x^3+18x^2-8x
    --------------
    5x

  • 9th grade algebra - ,

    4(4x-1)(x-2)=0

  • 9th grade algebra - ,

    (7f6)(-3tc-3)

  • 9th grade algebra - ,

    what is 27-5x<3(4x+5)

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