Why is a^-2/3(a^5/4-a^3)= a^7/12-a^7/3?

I need math help once again I have a test next Monday and I am stuck on this homework problem I don't know how in the back of the book they got a^7/12-a^7/3 as the answer.


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Most Helpful Girl

  • Kill me now... 😑

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    • Give me a gun lol :P just kidding.

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    • MH and I was of no use... Lol thanks :)

    • neither were the other females :) i gave you mh cause you made me laugh :P

Most Helpful Guy

What Girls Said 3

  • What is this rubbish
    Put it back in the depths of hell where it belongs demon

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  • Get that sin out of here. *Puts in my eye drops and prays.* #YouIsSinful
    pbs.twimg.com/media/BxDg_rICYAAQJBo.jpg:large

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    • What is up with all these black people on my nuts?

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    • You do know none of this is serious right?

  • don't know. I don't speak nerd

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What Guys Said 3

  • -2/3+5/4=7/12
    -2/3+3=7/3

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  • When you foil out the a^-2/3(a^5/4-a^3) you find the common denominator and add them together.

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    • Oh okay got yah thanks

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    • Yeah I know. I was talking about all the stuff I typed after that. If you have any more math questions feel free to ask me. It's the only shit I'm good at besides history and science.

    • Okay thank you I will :)

  • You need to use parenthesis to indicate when the power of A ends or is all of that to the power of the first A on the left side of the equal signs?

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    • Yeah that carrot sign is power.

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    • What I'm trying to say is a^5/4-a^3 is very different than equation than (a^5/4)-a^3

    • Oh okay yes those parenthesis are supposed to be there.

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