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ohhailayne

  • 2 years ago

x^2+6x+9/5x+15 simplifying rational expressions, helpppp

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  1. Jim766
    • 2 years ago
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    need to factor the numerator and denominator, any idea how to factor x^2 + 6x + 9 = (x )(x )

  2. ohhailayne
    • 2 years ago
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    yeah, would it be (x+3)(x+2) ? @jim_thompson5910

  3. Jim766
    • 2 years ago
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    need two numbers that multiply to get 9, but also add up to 6

  4. Jim766
    • 2 years ago
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    you are close by look again

  5. ohhailayne
    • 2 years ago
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    so (x+3)(x+3) but the bottom two numbers would have to be 5 & 3 right?

  6. Jim766
    • 2 years ago
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    5x + 15 what is the GCF?

  7. Jim766
    • 2 years ago
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    what divides evenly into both 5 and 15

  8. ohhailayne
    • 2 years ago
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    5! :)

  9. Jim766
    • 2 years ago
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    (x+3)(x+3) ---------- now cancel out the (x-3) that is on both top and bottom 5(x + 3)

  10. Jim766
    • 2 years ago
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    what is left?

  11. Jim766
    • 2 years ago
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    x + 3 ----- 5

  12. Jim766
    • 2 years ago
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    you good?

  13. ohhailayne
    • 2 years ago
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    yessss i really just needed the formula or whatever

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