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anonymous

  • 5 years ago

4/x+1 - 4x/3x simplify Please

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  1. anonymous
    • 5 years ago
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    is x+1 all in the denominator?

  2. anonymous
    • 5 years ago
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    yea so is 3x

  3. myininaya
    • 5 years ago
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    \[\frac{4}{x+1}-\frac{4}{3}*\frac{x+1}{x+1}\]

  4. anonymous
    • 5 years ago
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    the LCD is 3x(x+1) so this will become, (4(3x)-4x(x+1))/3x(x+1) 12x-4x^2-4x/3x(x+1) -4x^2+8x/3x(x+1) x(-4x+8)/3x(x+1) (-4x+8)/3(x+1)

  5. myininaya
    • 5 years ago
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    multiply first fraction by 3/3

  6. myininaya
    • 5 years ago
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    pat we don't need the x

  7. myininaya
    • 5 years ago
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    since x/x=1 assuming x isnt zero

  8. anonymous
    • 5 years ago
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    yeah, but i just included it to the LCD, do not worry, the answer will be the same.

  9. myininaya
    • 5 years ago
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    i know lol just more work

  10. anonymous
    • 5 years ago
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    thankyou!

  11. anonymous
    • 5 years ago
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    yeah, lol

  12. anonymous
    • 5 years ago
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    its for my algebra 2 exam

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