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UmarsBack

  • 2 years ago

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  1. UmarsBack
    • 2 years ago
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    Subtract:(3x2 - x - 5) - (x + 2)

  2. rosho
    • 2 years ago
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    distribute the minus sign first.

  3. rosho
    • 2 years ago
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    and i believe you mean this 3x^2?

  4. UmarsBack
    • 2 years ago
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    yeah 3x^2

  5. UmarsBack
    • 2 years ago
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    wanna tell me how you distribute the minus signs? lol i havent really understood how to do this.

  6. rosho
    • 2 years ago
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    well, i'm not very good at explaining stuff i'm more of a learner by doing.

  7. rosho
    • 2 years ago
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    (3x2 - x - 5) - (x + 2) 3x2 - x - 5) - x - 2

  8. rosho
    • 2 years ago
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    do you understand what i just did?

  9. UmarsBack
    • 2 years ago
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    Yeah you took away the brackets?

  10. UmarsBack
    • 2 years ago
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    and changed it to a negative..

  11. rosho
    • 2 years ago
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    yes, that's correct, so can you take it from here.

  12. UmarsBack
    • 2 years ago
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    so, (- x - 5) - x - 2?

  13. UmarsBack
    • 2 years ago
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    Do they add?

  14. rosho
    • 2 years ago
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    yeps.

  15. UmarsBack
    • 2 years ago
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    so the answer is 3x2 - 2x -7?

  16. rosho
    • 2 years ago
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    correct!

  17. UmarsBack
    • 2 years ago
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    THANKS!

  18. rosho
    • 2 years ago
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    your welcome!

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