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anonymous

  • one year ago

simplify the expression

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  1. anonymous
    • one year ago
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    \[\frac{ -18a ^{-8} b ^{-3}}{ 6a ^{-2}b ^{-7} }\]

  2. anonymous
    • one year ago
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    please help

  3. anonymous
    • one year ago
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    the rule is to simplify exponents of the same base (a or b), in that the fraction indicates a minus sign between the exponents and a multiplication indicates a plus. For example, consider a: -8 -(-2)=-6. For the same reason, consider b: -2 -(-7)=5. here it is the final simplification \[-{ a^{-6} b^{5} }\]

  4. anonymous
    • one year ago
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    a9 ———— 2b12

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