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Bananas1234

  • one year ago

Simplify: -27a^2b^2/9ab

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  1. Bananas1234
    • one year ago
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    @robtobey

  2. Bananas1234
    • one year ago
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    @Nnesha

  3. Nnesha
    • one year ago
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    exponent rules ?

  4. Nnesha
    • one year ago
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    \[\huge\rm \frac{ -27a^2b^2 }{ 9ab }\] \[\large\rm \frac{ x^m }{ x^n } =x^{m-n}\]

  5. Nnesha
    • one year ago
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    u add when you multiply *same* bases

  6. Bananas1234
    • one year ago
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    i can't multiply the same bases here can i?

  7. Nnesha
    • one year ago
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    nope bec it's a fraction

  8. Bananas1234
    • one year ago
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    ok

  9. Nnesha
    • one year ago
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    |dw:1433365972157:dw| move exponent from denominator to de top when you do that signs chane

  10. Nnesha
    • one year ago
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    change*

  11. Bananas1234
    • one year ago
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    there is no exponent on the bottom in this one

  12. Nnesha
    • one year ago
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    yes there is x^1 <- invisible one

  13. Bananas1234
    • one year ago
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    oh i see

  14. Bananas1234
    • one year ago
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    |dw:1433366232191:dw|

  15. Nnesha
    • one year ago
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    yes right

  16. Bananas1234
    • one year ago
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    |dw:1433366280476:dw|

  17. Nnesha
    • one year ago
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    yep when u move to the top then there is not b at the denominator \[\huge\rm \frac{ -27a^2b^{2-1} }{ 9a }\]

  18. Nnesha
    • one year ago
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    no* b

  19. Bananas1234
    • one year ago
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    oh ok

  20. Nnesha
    • one year ago
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    a^2 /a = ?

  21. Bananas1234
    • one year ago
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    not sure

  22. Nnesha
    • one year ago
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    why not ?? same like b same rules apply there

  23. Bananas1234
    • one year ago
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    so a^2 divides by 9a?????

  24. Nnesha
    • one year ago
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    let's separate them \[\huge\rm \frac{ -27 }{ 9 } \times \frac{ a^2 }{ a } \times \frac{ b^2 }{ b }\] divide -27/9 a^2 can be written as a times a(when you multiply same bases you add their exponent ) let's separate them \[\large\rm \frac{ -27 }{ 9 } \times \frac{ a \times a }{ a } \times \frac{ b^2 }{ b }\] now can you cancels a?

  25. Bananas1234
    • one year ago
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    yes

  26. Nnesha
    • one year ago
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    so what's next ? \[\frac{ a \times a }{ a } = ?\]

  27. Bananas1234
    • one year ago
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    a?

  28. Nnesha
    • one year ago
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    yep right

  29. Nnesha
    • one year ago
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    solve other one and let me know what yo uget :-) -27/9 =? b^2 /b= ?

  30. Bananas1234
    • one year ago
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    -3 and b^3?

  31. Bananas1234
    • one year ago
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    –3ab??????

  32. Bananas1234
    • one year ago
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    @Nnesha

  33. Nnesha
    • one year ago
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    \(\color{blue}{\text{Originally Posted by}}\) @Bananas1234 –3ab?????? \(\color{blue}{\text{End of Quote}}\) yes right

  34. Bananas1234
    • one year ago
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    Thanks

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