anonymous
  • anonymous
Show all work in dividing 9 x squared minus 1 all over 8 x minus 4 divided by the fraction 3 x squared plus 5 x minus 2 all over 2 x squared plus x minus 1.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
factorise denominator of top half using the difference of 2 squares method
anonymous
  • anonymous
then factorise the denominator of bottom half using quadratics
anonymous
  • anonymous
I remember you have to keep change flip with this so now it becomes \[9x^2-1\over 8x-4 \] * \[2x^2+1-1 \over 3x^2+5x-2\]

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anonymous
  • anonymous
but they would be across from each other
anonymous
  • anonymous
so if they r across from each other doesnt that mean u can multiply them??
anonymous
  • anonymous
I thought you had to factor them first?
anonymous
  • anonymous
hmm i dont see a way to factor the 2x squared +1 -1....
anonymous
  • anonymous
try multiplying them out first nd see what u get
anonymous
  • anonymous
ok, so far i have...\[(3x+1)(3x-1) \over (4x+2)(2-2)\] and \[(2x -)(x-) \over (3x-)(x(+)\]
anonymous
  • anonymous
r they across from each other??
anonymous
  • anonymous
yes
anonymous
  • anonymous
I think we r going to need help with this one
anonymous
  • anonymous
@nincompoop fire away lol
anonymous
  • anonymous
3 heads r better than 1 :)

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