Math

Is this equation right is it worked correctly x 1

----- - --------

x2-4 x2+4x+4



This is how she simplified it:



x(x2+4x+4) - 1(x2-4)

-------------------

(x2-4)(x2+4x+4)



x3+4x2+4x-x2+4

-------------

x4+4x3-16x-16



x3+3x2+4x+4

------------

x4+4x3-16x-16



1+3x2+1+1

---------

x4+4-4-4



3+3x2

------

x4-4



3+3

-----

x2-4



6

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x2-4

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asked by Nadine
  1. You did not start with an equation.
    None of what follows makes sense

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    posted by drwls

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