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Mathematics 16 Online
OpenStudy (anonymous):

explain whether you can get x^4 from this expression or not

OpenStudy (anonymous):

OpenStudy (raffle_snaffle):

okay so multiply the top first and by doing so add the powrs.

OpenStudy (anonymous):

so x^12/4 over x^1/4

OpenStudy (raffle_snaffle):

now when you divide you subtract the powers

OpenStudy (anonymous):

ok ok so it would be 11/4???

OpenStudy (raffle_snaffle):

reduce 12/4

OpenStudy (raffle_snaffle):

before you divide

OpenStudy (anonymous):

x^3 then divide by x^1/4?

OpenStudy (raffle_snaffle):

yeah so when you divide you subtract the powers

OpenStudy (anonymous):

since 3 is a whole number it would be 3/1, then subtract 1/4 so its 2/4=1/2 right?

OpenStudy (raffle_snaffle):

sigh let me to this on paper

OpenStudy (raffle_snaffle):

are you sure the answer is x^4

OpenStudy (raffle_snaffle):

I think your solution is wrong.

OpenStudy (anonymous):

its actually a tue or false question whether it equals x^4 or not....

OpenStudy (raffle_snaffle):

well it's false. Lol

OpenStudy (anonymous):

hahaha yeah but what would i do after i reduced 12/4 to 3

OpenStudy (raffle_snaffle):

basically when you have variables with rational powers you that are multi you add the powers and division you subtract.

OpenStudy (raffle_snaffle):

bad english... when mult you add power and division you subtract

OpenStudy (raffle_snaffle):

so after you reduce you have x^3/x^1/4 now you sub powrs

OpenStudy (raffle_snaffle):

so you would get x^11/4

OpenStudy (anonymous):

ok ty!

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