Mathematics
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OpenStudy (bananas1234):
Simplify. (a^3b^–4)^3
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OpenStudy (bananas1234):
options:
1/a^3b^3
1/ab
a^9/b^12
a^6/b^7
jagr2713 (jagr2713):
ok first we use distributive property (Multiplication) which is\[(xy)^{a}=x ^{a}y y^{a}\]
can you set it up?
jagr2713 (jagr2713):
If not here it is\[(a ^{3})^{3}(b ^{-4})^{3}\]
what o we do with the two 3's in the equation @Bananas1234
jagr2713 (jagr2713):
You the @Bananas1234
OpenStudy (anonymous):
Um.. idk the answer... :P
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jagr2713 (jagr2713):
@Bananas1234 you there
OpenStudy (bananas1234):
yes, sorry i had to step away for a min.
OpenStudy (bananas1234):
add the 3s together to get a^6?
jagr2713 (jagr2713):
Nope we simplify right? what do we get? and give it to me in the equation form
OpenStudy (bananas1234):
we could divide them then all that would be left is a?
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jagr2713 (jagr2713):
Nope simplify means or multiply :D
OpenStudy (bananas1234):
a^9?
jagr2713 (jagr2713):
Good so we are left with??
OpenStudy (bananas1234):
(b^-4)^3
jagr2713 (jagr2713):
you forgot the a9
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jagr2713 (jagr2713):
so \[a ^{9}(b ^{-4})^{3}\]
so what do we do with the next sie the -4 and 3
OpenStudy (bananas1234):
multiply or divide?
jagr2713 (jagr2713):
Its like we did above :D and put it into the equation like above
OpenStudy (bananas1234):
b^12?
jagr2713 (jagr2713):
Your missing something
again (-4)(3)
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OpenStudy (bananas1234):
-12?
jagr2713 (jagr2713):
Good so we have \[a ^{9}b ^{-12}\]
jagr2713 (jagr2713):
Ok now we use Negative Power Rule \[x ^{-a}=\frac{ 1 }{ x^{a} }\]
Can you set it up as that?
OpenStudy (bananas1234):
a^-9 = 1/b^-12? sorry if that is wrong
jagr2713 (jagr2713):
Its ok is the 9 Negative?
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OpenStudy (bananas1234):
no
jagr2713 (jagr2713):
So its actually?
OpenStudy (bananas1234):
b^12 = 1/a^9
jagr2713 (jagr2713):
Good so when we simply we get or just put it into a fraction what do we have?
OpenStudy (bananas1234):
a^9/b^12
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jagr2713 (jagr2713):
Correct :D There you go :D
jagr2713 (jagr2713):
Great job :D
jagr2713 (jagr2713):
so whats the answer?
OpenStudy (bananas1234):
C
jagr2713 (jagr2713):
Correct
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OpenStudy (bananas1234):
Thank you!
jagr2713 (jagr2713):
Anytime :D