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Spring98

  • one year ago

Which of the following would be equivalent to 3^2 • 3^5? 3^10/3^3 3^10/3^7 3^1*3^7 3^0

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  1. Nnesha
    • one year ago
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    when we divide same bases we should `subtract` their exponents \[\huge\rm \frac{ x^m }{ x^n }=x^{m-n}\] and when we `multiply` same bases we should `add` ther exponents \[\huge\rm x^m \times x^n=x^{m +n}\]

  2. Spring98
    • one year ago
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    so would it be the third one?

  3. Spring98
    • one year ago
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    from the answers?

  4. Nnesha
    • one year ago
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    3rd one is \[\huge\rm 3^1 \times 3^7\] ???

  5. Spring98
    • one year ago
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    i know but i need the answer that is eqivelent to 3^2*3^5!

  6. Nnesha
    • one year ago
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    i said when we multiply same bases we should add their exponents so 3^2 times 3^5= ???

  7. Spring98
    • one year ago
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    im not understanding it

  8. Nnesha
    • one year ago
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    here is an example \[\huge\rm 2^\color{ReD}{5} \times 2^\color{blue}{4} = 2^{\color{red}{5} +\color{blue}{4}} =2^9\]

  9. Nnesha
    • one year ago
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    so \[\huge\rm 3^\color{ReD}{2} \times 3^\color{blue}{5} = 3^{???}\]

  10. Spring98
    • one year ago
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    3^7

  11. Nnesha
    • one year ago
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    yes right! now look at the options which option is equal to 3^7

  12. Spring98
    • one year ago
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    the third option right?

  13. Nnesha
    • one year ago
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    here are some examples anything to the zero power is just equal to one \[\huge\rm (x)^0= 1~~~~(anything)^0=1\] and like i said when we divide same bases we should subtract their exponents example is \[\huge\rm \frac{ 2^5 }{ 2^3 }=2^{5-3}\]

  14. Nnesha
    • one year ago
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    \[3^1 \times 3^7=?\]would you add those exponents or subtract ?

  15. Spring98
    • one year ago
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    subtract

  16. Nnesha
    • one year ago
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    \(\color{blue}{\text{Originally Posted by}}\) @Nnesha when we divide same bases we should `subtract` their exponents \[\huge\rm \frac{ x^m }{ x^n }=x^{m-n}\] and when we `multiply` same bases we should `add` ther exponents \[\huge\rm x^m \times x^n=x^{m +n}\] \(\color{blue}{\text{End of Quote}}\) read this

  17. Spring98
    • one year ago
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    ok we add

  18. Nnesha
    • one year ago
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    right so \[\huge\rm 3^1 \times 3^7= 3^{1+7} \] is this equal to 3^7 ??

  19. Spring98
    • one year ago
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    3^8

  20. Nnesha
    • one year ago
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    so that's not equal to 3^7 that's why 3rs one isn't correct

  21. Nnesha
    • one year ago
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    3rd*

  22. Nnesha
    • one year ago
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    try other options

  23. Spring98
    • one year ago
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    o it would be the first one because you subtract it and it would equal 3^7 right?

  24. Nnesha
    • one year ago
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    :=) nice!!!

  25. Spring98
    • one year ago
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    thanks @Nnesha you helped me alot!!! :)

  26. Nnesha
    • one year ago
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    my pleasure :=)

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