Question 93565
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use the fifth property of exponent and simplify:

 {{{ ( (y^5)^3(y^3)^2 )/( (y^4)^4) }}}

Multiply exponents across a parentheses to remove them.

That is, 

1. multiply the exponent 5 by the exponent 3 in 
the first factor on top to get an exponent of 15.

2. multiply the exponent 3 by the exponent 2 in 
the second factor on top to get an exponent of 6.

3. multiply the exponent 4 by the exponent 4 in 
the bottom to get an exponent of 16.

{{{(y^15y^6)/y^16}}}

Now multiply on top by adding the exponents on top 
15+6 to get an exponent of 21 on top:

{{{y^21/y^16}}}

Now divide by subtracting the exponents 21-16 to
get an exponent of 5

{{{y^5}}}

Edwin</pre>