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anonymous

  • one year ago

What is the simplified form of 1 over x minus 2 over x squared plus x ?

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  1. anonymous
    • one year ago
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    Well, what's the LCD (the common denominator)?

  2. anonymous
    • one year ago
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    @Hero @mathstudent55 @mathmate @mathmath333

  3. anonymous
    • one year ago
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    i really just need the fast verion i have three more assignments like this :/

  4. mathstudent55
    • one year ago
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    First, we need to understand what the problem is. OS has an equation editor, a draw tool, a way to post pictures, and of course, you can write an expression using numbers, symbols, and parentheses. Since you didn't do any of those, we can't know for sure what your problem is because of the way you wrote it. It can be interpreted in different ways.

  5. mathmate
    • one year ago
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    Is "fast version" meant to be "answer only" ? lol

  6. mathstudent55
    • one year ago
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    Is it one of these? |dw:1440354456001:dw|

  7. anonymous
    • one year ago
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    x minus 1 over the quantity x times x plus 1 1 minus x over the quantity x times x plus 1 3 minus x over the quantity x times x minus 1 x plus 2 over the quantity x times x minus 1 these are the answers

  8. anonymous
    • one year ago
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    I'm on an iPad, so I can't use the tools to write the equations :/

  9. anonymous
    • one year ago
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    and it is the first one XD

  10. mathstudent55
    • one year ago
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    You can still use numbers, operation signs, and parentheses.

  11. mathstudent55
    • one year ago
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    Ok. The first one. To add fractions, you need a common denominator. First, you need to factor the denominator of the right fraction.

  12. mathstudent55
    • one year ago
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    |dw:1440354753400:dw|

  13. anonymous
    • one year ago
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    i dont understand

  14. anonymous
    • one year ago
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    hello

  15. mathstudent55
    • one year ago
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    You need to factor \(x^2 + x\). You need to use the distributive property to find out what two factors have a product of \(x^2 + x\).

  16. mathstudent55
    • one year ago
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    The distributive property: \(a(b + c) = ab + ac\) In your case, you have \(x^2 + x = x \cdot x + x \cdot 1\) Now compare the right side above with the right side of the distributive property. \(x^2 + x = x(x + 1)\) That is how the right denominator is factored.

  17. mathstudent55
    • one year ago
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    |dw:1440356266228:dw|

  18. mathstudent55
    • one year ago
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    Now we need a common denominator. The LCD of x and x(x + 1) is x(x + 1) |dw:1440356356242:dw|

  19. mathstudent55
    • one year ago
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    Now we have a common denominator, so we can subtract the fractions. |dw:1440356409379:dw|

  20. mathstudent55
    • one year ago
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    That is the final answer. You can;t reduce it because there hare no common factors in the numerator and denominator.

  21. anonymous
    • one year ago
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    thank you

  22. mathstudent55
    • one year ago
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    yw

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