anonymous
  • anonymous
Which expression is equivalent to 3^2 ⋅ 3^−5? fraction 1 over 3 to the power 3 fraction 1 over 3 to the power 7 fraction 1 over 3 to the power negative 3 fraction 1 over 3 to the power negative 7
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Nnesha
  • Nnesha
when multiply same bases you should add their exponents \[\huge\rm x^m \times x^n=x^{m+n}\]
Nnesha
  • Nnesha
negative exponent \[\huge\rm x^{-m}=\frac{ 1 }{ x^m}\] *flip the fraction*
Nnesha
  • Nnesha
any question ? did u understand ? yes or no ?

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anonymous
  • anonymous
yeah thanks
anonymous
  • anonymous
so it will be fraction 1 over 3 to the power negative 7 @Nnesha ?
Nnesha
  • Nnesha
hmm no first add both exponents and then flip the fraction
anonymous
  • anonymous
oh so its fraction 1 over 3 to the power 7
Nnesha
  • Nnesha
\[\huge\rm 3^2 \times 3^{-5} = 3^{??}\]
anonymous
  • anonymous
i got 0.037... when i multiplied them
Nnesha
  • Nnesha
well don't use calculator read my first comment here is an example \[\huge\rm 2^5 \times 2^{-6}= 2^{5+(-6)}\]
anonymous
  • anonymous
its A
Nnesha
  • Nnesha
how ? explain plz
anonymous
  • anonymous
i don't know
Nnesha
  • Nnesha
hmm why did you say its A ? anyways \[\huge\rm 3^2 \times 3^{-5} = 3^{2+(-5)}= 3^{??}\]
Nnesha
  • Nnesha
when we multiply same bases we should add their exponents

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