anonymous
  • anonymous
Difficult question, please help!! What is the simplified form of the quantity 3 x squared over x squared minus 1 all over 9 x over the x squared plus 2 x plus 1 ? a)x times the quantity x minus 1 all over 3 times the quantity x plus 1 b)x times the sum x plus 1 all over 3 times the quantity x minus 1 c)3 x times the quantity x plus 1 all over the quantity x minus 1 d)the quantity x minus 1 all over 3 x times the quantity x plus 1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
I tried to eliminate the choices, but I kept messing up. I just need help figuring out how to solve
anonymous
  • anonymous
\[\frac{3x^2}{x^2-1}/\frac{9x}{x^2+2x+1} \]Is the above the problem expression?
anonymous
  • anonymous
The first fraction that you put goes above the second.

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anonymous
  • anonymous
Oh I read that awrong. You're right!
anonymous
  • anonymous
Well "/", although small, is a division sign.\[\left(\frac{3x^2}{x^2-1}/\frac{9x}{x^2+2x+1}\right)=\left(\frac{3x^2}{x^2-1}*\frac{x^2+2x+1}{9x}\right) \]Try factoring the expressions containing x^2. Also, 3x^2/9x will simplify.
anonymous
  • anonymous
|dw:1346283896987:dw|
anonymous
  • anonymous
The above is correct except for the 3x. Can you simplify the following.\[\frac{3x^2}{9x} \]
anonymous
  • anonymous
Ohh would the 3x go on the bottom with the denominator? x^2
anonymous
  • anonymous
Wait it would be .... (Hang on drawing it)
anonymous
  • anonymous
|dw:1346284402022:dw|
anonymous
  • anonymous
\[\frac{3x^2}{9x}=\frac{x}{3} \]Sorry, I had to leave the computer for a few minutes.
anonymous
  • anonymous
Congratulations.\[\frac{x (x+1)}{3 (x-1)} \]is correct.
anonymous
  • anonymous
Thank you so much!! You're so awesome!!
anonymous
  • anonymous
And thank you for the medal.
anonymous
  • anonymous
Anytime :)

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