Question 1093234
<br>Just for clarification on the first response you got, where the writer didn't write exactly what she meant at one point....<br>
I will assume all of the numbers are exponents, so the given expression is
{{{(xy^3z^4)^4}}}<br>
To simplify, you need to apply the "outer" exponent 4 to all of the factors inside the parentheses.  The factors inside the parentheses are x, y^3, and x^4.  Basic rules of exponents then give us
{{{((x)^4)((y^3)^4)((z^4)^4) = (x^4)(y^12)(z^16)}}}<br>
Note the previous response had the final answer right; but an exponent was missing in the last expression before the final answer.  Since you are helping your daughter to try to understand this, I thought it might be worth my time to make that clarification for you.