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Mathematics 4 Online
whyjustwhy:

GUYS I NEED HELPPPPPPPPPP

whyjustwhy:

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kristen000021:

3x^6y^9 I think

surjithayer:

\[\frac{ 9x^5y^8 }{ 3xy}=3x^5y^8x^{-1}y^{-1}=3x^{5-1}y^{8-1}=3x^4y^7\]

kingvox:

I swear I think thats 3x^4 y^7

docia14:

I do not know

kingvox:

I haven't done this in a while

surjithayer:

it is very simple and it is corrct.

adrianluvvsyouu2:

You can subtract the exponents in the numerator by those in the denominator, as long as they belong to the same variable. Basically: \[\frac{x^{a}}{x^{b}} = x^{a-b}\] So we can look at each part, the first is 9/3, which just comes out to three. Now your equation should look like this: \[\frac{3x^{5}y^{8}}{xy}\] Using the property I mentioned, we should be able to subtract the exponents for both the x and the y... \[3x^{5-1}y^{8-1}\] Now simplify to get your final equation, and remember that if a variable has no exponent (meaning just an x or y) then there is actually a 1 there that should be used in problems like these. Have a great day!

V4MPZSKII:

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