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neverforgetvivistee

  • 4 years ago

simplyfing radical expressions: how do you find x^3-x^2-42x ------------ 2x^2-20x+42

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  1. Hero
    • 4 years ago
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    :/

  2. neverforgetvivistee
    • 4 years ago
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    oops

  3. neverforgetvivistee
    • 4 years ago
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    wait it's not radical it's rational

  4. neverforgetvivistee
    • 4 years ago
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    rational expressions

  5. neverforgetvivistee
    • 4 years ago
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    i learned when it's x^2 but not x^3

  6. neverforgetvivistee
    • 4 years ago
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    i mastered radical expressions by the way

  7. Akshay_Budhkar
    • 4 years ago
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    take the x common in the numerator you get a quadratic equation which is what you know

  8. neverforgetvivistee
    • 4 years ago
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    by everything?

  9. neverforgetvivistee
    • 4 years ago
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    oh wait

  10. Sarah.L
    • 4 years ago
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    \[\large{\frac{x^3-x^2-42x}{2x^2-20x+42}= \frac{x(x^2-x-42)}{2x^2-20x+42}}\]

  11. neverforgetvivistee
    • 4 years ago
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    oh i see, thanks!

  12. Hero
    • 4 years ago
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    Of course it can be simplified further

  13. Sarah.L
    • 4 years ago
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    yes^

  14. Hero
    • 4 years ago
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    neverforgetvivistee should post her solution on here to make sure it is right

  15. Sarah.L
    • 4 years ago
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    yes^

  16. neverforgetvivistee
    • 4 years ago
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    i got x(x+6)/2(x+3)

  17. neverforgetvivistee
    • 4 years ago
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    wait no it's x-3

  18. neverforgetvivistee
    • 4 years ago
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    x(x+6)/2(x-3)

  19. Sarah.L
    • 4 years ago
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    yeah thats right

  20. neverforgetvivistee
    • 4 years ago
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    nice

  21. neverforgetvivistee
    • 4 years ago
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    i'll master rationals soon

  22. Sarah.L
    • 4 years ago
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    GoodLuck ;)

  23. neverforgetvivistee
    • 4 years ago
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    thanks everyone

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