anonymous
  • anonymous
simplyfing radical expressions: how do you find x^3-x^2-42x ------------ 2x^2-20x+42
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Hero
  • Hero
:/
anonymous
  • anonymous
oops
anonymous
  • anonymous
wait it's not radical it's rational

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anonymous
  • anonymous
rational expressions
anonymous
  • anonymous
i learned when it's x^2 but not x^3
anonymous
  • anonymous
i mastered radical expressions by the way
Akshay_Budhkar
  • Akshay_Budhkar
take the x common in the numerator you get a quadratic equation which is what you know
anonymous
  • anonymous
by everything?
anonymous
  • anonymous
oh wait
anonymous
  • anonymous
\[\large{\frac{x^3-x^2-42x}{2x^2-20x+42}= \frac{x(x^2-x-42)}{2x^2-20x+42}}\]
anonymous
  • anonymous
oh i see, thanks!
Hero
  • Hero
Of course it can be simplified further
anonymous
  • anonymous
yes^
Hero
  • Hero
neverforgetvivistee should post her solution on here to make sure it is right
anonymous
  • anonymous
yes^
anonymous
  • anonymous
i got x(x+6)/2(x+3)
anonymous
  • anonymous
wait no it's x-3
anonymous
  • anonymous
x(x+6)/2(x-3)
anonymous
  • anonymous
yeah thats right
anonymous
  • anonymous
nice
anonymous
  • anonymous
i'll master rationals soon
anonymous
  • anonymous
GoodLuck ;)
anonymous
  • anonymous
thanks everyone

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