Q. Given x>0 and y>0, select the expression that is equivalent to3−125x9y25ix3y32−5x31y23−5x3y325ix31y23
Simplify −125: Let's first simplify the cube root of the constant and the variables separately.The cube root of −125 is −5 because (−5)3=−125.
Simplify x9: Now, let's consider the variable x. The cube root of x9 is x39 because when you take the cube root, you divide the exponent by 3. So, x39 simplifies to x3.
Simplify y2: Next, we look at the variable y. The cube root of y2 is y2/3 because, similarly, you divide the exponent by 3 when taking the cube root.
Combine Results: Combining the results from the previous steps, we get the expression −5x3y(2/3) as the equivalent expression for the cube root of (−125x9y2).
Compare with Options: Now, let's compare our result with the given options to find the matching expression. The correct expression that matches our result is −5x3y(32).
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