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lulabell97 · Jun 20, 2012, 12:21 PM

Simplify fully:
15x3 y2
___________
5xy

lulabell97 · Jun 20, 2012, 12:24 PM

by the way the x is the algebraic one not times and the 2 and 3 in the numerator are meant to be power numbers

ebaines · Jun 21, 2012, 06:54 AM

When you divide a number raised to a power by that same number raised to a different power the result is that number raised to the difference of the two powers:

$<br /> \frac {x^a}{x^b} = x^{(a-b)}<br />$

For example:

$<br /> \frac {z^7}{z^5} = z^{(7-5)} = z^2<br />$

You can apply this principle to the x and y terms in your homework problem. As for the 15 in the numerator and 5 in the denominator - I will assume that you know what 15 divided by 5 is.