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narissa

  • one year ago

when dividing exponents for division do u subtact?

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  1. jim_thompson5910
    • one year ago
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    You mean something like this? \[\LARGE \frac{x^8}{x^3}\]

  2. narissa
    • one year ago
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    yes

  3. narissa
    • one year ago
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  4. jim_thompson5910
    • one year ago
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    yes, you subtract the exponents (top - bottom) \[\LARGE \frac{x^8}{x^3} = x^{8-3} = x^5\] this only works if the bases are the same. In this case, they are both x

  5. narissa
    • one year ago
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    so it would be c

  6. jim_thompson5910
    • one year ago
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    top exponent = 12 bottom exponent = -3 top - bottom = (top) - (bottom) = (12) - (-3) = ??? it's not going to be 9

  7. narissa
    • one year ago
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    d

  8. jim_thompson5910
    • one year ago
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    yes 12 - (-3) = 12+3 = 15

  9. narissa
    • one year ago
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    thanks can u help me with a few more?

  10. jim_thompson5910
    • one year ago
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    sure, one more

  11. jim_thompson5910
    • one year ago
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    post as a new question and tag me in it

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