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gioanny39x

  • 2 years ago

Simplify completely quantity 5 x squared minus 21 x minus 20 all over quantity 5 x squared minus 16 x minus 16

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  1. aroub
    • 2 years ago
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    5x^2-21x-20/5x^2-16x-16 ?

  2. gioanny39x
    • 2 years ago
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    yes :)

  3. aroub
    • 2 years ago
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    Okay :) Well, all you have to do is factor and cancel.

  4. aroub
    • 2 years ago
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    When you factor 5x^2-21x-20 it will become (x-5)(5x+4)

  5. aroub
    • 2 years ago
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    and when you factor 5x^2-16x-16 it will become (5x+4)(x-4)

  6. gioanny39x
    • 2 years ago
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    so itll be x-5/x-4?

  7. aroub
    • 2 years ago
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    Yes!

  8. gioanny39x
    • 2 years ago
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    can you help withSimplify completely quantity 2 x squared plus 13 x plus 20 all over x squared minus 5 x minus 36 @aroub

  9. aroub
    • 2 years ago
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    Yeah :)

  10. aroub
    • 2 years ago
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    2x^2+13x+20/x^2-5x-36 Same steps as before, lets factor! 2x^2+13x+20 = (2x+5)(x+4) x^2-5x-36 = (x-9)(x+4)

  11. aroub
    • 2 years ago
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    => (2x+5)(x+4)/(x-9)(x+4) By cancelling, = 2x+5/x-9

  12. gioanny39x
    • 2 years ago
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    2x+5/x-9?

  13. aroub
    • 2 years ago
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    =)

  14. gioanny39x
    • 2 years ago
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    thank you!

  15. aroub
    • 2 years ago
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    No probleemmm!

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