anonymous
  • anonymous
solve for u u+1/u+7 +1 = u+2/u+1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
first multiply by u+1 to get (u+1)^2/(u+7)+u+1=u+2
anonymous
  • anonymous
now multiply by u+7 (u+1)^2+(u+1)(u+7)=(u+2)(u+7)
anonymous
  • anonymous
now expand the brackets and but everything to one side and solve it

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anonymous
  • anonymous
would the answer have a u in it or just numbers ?
anonymous
  • anonymous
just number(s), and there might be 2 answers
anonymous
  • anonymous
because i get u+3/2 idk how :-/
anonymous
  • anonymous
ok expanding gives u^2+2u+1+u^2+u+7u+7=u^2+2u+7u+14
anonymous
  • anonymous
now putting everything to the left u^2+u-6=0
anonymous
  • anonymous
do you know how to solve this?
anonymous
  • anonymous
wait let me try it give me a sec
anonymous
  • anonymous
its all to the left so wouldn't it just stay like that or would it turn to u^3-6=0
anonymous
  • anonymous
I can see 10 u on the LHS and 9u on the RHS

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