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anonymous

  • one year ago

PLEASE HELP, I AM ABOUT TO CHEW MY ARM OFF OVER THIS!!!!!

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  1. anonymous
    • one year ago
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    Rocky simplified an expression in three steps, as shown:

  2. anonymous
    • one year ago
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  3. anonymous
    • one year ago
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    Which is the first incorrect step and why? Step 1, all the exponents are increased by 2 Step 1, all the exponents are multiplied by 2 Step 2, the exponents in the denominator are added during multiplication Step 3, the exponents of the same base are added during division

  4. nuttyliaczar
    • one year ago
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    Keep in mind that anything with a negative exponent is just one over that term with a positive exponent. For example, x^-1 = 1/x

  5. nuttyliaczar
    • one year ago
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    Does that help at all?

  6. anonymous
    • one year ago
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    Ok, yes that helps ALOT, it's just that i have one more assignment after this one, and i am out of school, So i think i am just stressed out.

  7. anonymous
    • one year ago
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    Of thinking if i will pass or not.

  8. nuttyliaczar
    • one year ago
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    Well I'm here for any other questions you may have. I'm not saying I'm the best help but I will try my best

  9. anonymous
    • one year ago
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    So can you help me eliminate real quick?

  10. nuttyliaczar
    • one year ago
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    Yeah I'm here

  11. anonymous
    • one year ago
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    I think we can rule out C

  12. nuttyliaczar
    • one year ago
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    Yeah multiplying like terms with exponents just means you add their exponents together

  13. anonymous
    • one year ago
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    We can eliminate A because, increasing means to add, and they are multiplying it by 2.

  14. anonymous
    • one year ago
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    I think it's B

  15. anonymous
    • one year ago
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    because they are doing that, in step1

  16. nuttyliaczar
    • one year ago
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    Well consider what multiplying the exponents by two means. When you have any term to the 2nd power that just means you multiply it by itself. So if you look at just the numerator here, (x^-5)(y^2) times itself is basically just multiplying the exponents by two

  17. nuttyliaczar
    • one year ago
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    Oh woops nvm

  18. nuttyliaczar
    • one year ago
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    Stupid mistake, you are right

  19. nuttyliaczar
    • one year ago
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    I misread the problem and thought there was only one mistake. Step 3 was a mistake also

  20. anonymous
    • one year ago
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    THANK YOU SO MUCH!

  21. anonymous
    • one year ago
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    You have been a really big help, i don't if i could have done it without you :)

  22. nuttyliaczar
    • one year ago
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    Um actually second-guessing myself now >.>

  23. nuttyliaczar
    • one year ago
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    You do just multiply by two

  24. nuttyliaczar
    • one year ago
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    Sorry I'm super rusty, been out of school for too long

  25. nuttyliaczar
    • one year ago
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    (x^-5)^2 = x^-10

  26. anonymous
    • one year ago
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    It's gotta be B because none of the other answer choices are happening in that problem.

  27. nuttyliaczar
    • one year ago
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    But B is correct. During step 2 x^6 * x^6 gives us x^12, and that's just (x^6)^2

  28. nuttyliaczar
    • one year ago
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    Btw it could be A, since idk what "increased by 2" means

  29. nuttyliaczar
    • one year ago
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    Eh I still think it's D, because he shouldn't be adding those exponents during division

  30. nuttyliaczar
    • one year ago
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    You always subtract for division

  31. anonymous
    • one year ago
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    increasing having the property that for any two points in the domain such that one is larger than the other, the image of the larger point is greater than or equal to the image of the smaller point; nondecreasing.

  32. nuttyliaczar
    • one year ago
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    Sorry for all the confusion, I'm sure of this now

  33. anonymous
    • one year ago
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    LOL just looked it up, because idk what it meant either

  34. nuttyliaczar
    • one year ago
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    Because look at what he does. He adds 12 to -10 for the x term

  35. nuttyliaczar
    • one year ago
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    But if he rewrote x^-10 as 1/x^10 he wouldn't have gotten the same

  36. anonymous
    • one year ago
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    OH yeah, in division you subtract the exponets, rather than adding them, YOUR RIGHT D IS THE ANSWER

  37. nuttyliaczar
    • one year ago
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    Sorry again ^^'

  38. anonymous
    • one year ago
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    It's ok, i think i have confused myself, it's not your fault.

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