Testing123guest
  • Testing123guest
@welshfella @texaschic101 plz help
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Testing123guest
  • Testing123guest
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anonymous
  • anonymous
Have you learnt the laws of exponents?
Testing123guest
  • Testing123guest
a little but i am very bad at it

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anonymous
  • anonymous
When dividing you subtract exponents
anonymous
  • anonymous
http://www.rapidtables.com/math/number/exponent.htm
anonymous
  • anonymous
\[\frac{ a ^{n} }{ a^{m} }=a ^{n-m}\]
Testing123guest
  • Testing123guest
ya but i dont under stand how to do it when it is n a fraction form
anonymous
  • anonymous
use my equation that i just wrote
anonymous
  • anonymous
what is a in your example? Its the base number. I.e a
anonymous
  • anonymous
n=7 m=3
Testing123guest
  • Testing123guest
s do i add 7 and 3
Testing123guest
  • Testing123guest
*so
anonymous
  • anonymous
\[\frac{ a ^{n} }{ a^{m} }=a ^{n-m}\]
anonymous
  • anonymous
what are we doing to the exponents on the RHS of the equation?
texaschic101
  • texaschic101
just plug your numbers into the formula
Testing123guest
  • Testing123guest
i am not sure
texaschic101
  • texaschic101
you are subtracting
Testing123guest
  • Testing123guest
7-3 so 4
Testing123guest
  • Testing123guest
a
texaschic101
  • texaschic101
yes...a^4
Testing123guest
  • Testing123guest
now can u check this one \[3^{2} * 3^{5} * 3^{-3}\] is it 81 and what is a,b,c,d
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Testing123guest
  • Testing123guest
is it b
texaschic101
  • texaschic101
when you are multiplying exponents with the same base, you add the exponents
texaschic101
  • texaschic101
so add the exponents.......2 + 5 + (-3)
texaschic101
  • texaschic101
yes...your correct...it is b
Testing123guest
  • Testing123guest
one more plz

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