Simplify Fraction Inside Root: Simplify the fraction inside the fourth root.We have the expression 45x−1y405x3y3. First, we simplify the fraction by dividing the numerator by the denominator.5x−1y405x3y3=5405×(x3×x1)×(y3/y)=81×x3+1×y2−1=81×x4×y2
Apply Fourth Root: Apply the fourth root to the simplified expression.Now we take the fourth root of the simplified expression.481×x4×y2Since 81 is a perfect fourth power (34=81), and x4 is also a perfect fourth power, we can simplify further.481×4x4×4y2= 3×x×4y2
Check Further Simplification: Check if the expression inside the fourth root can be simplified further.The expression 4y2 cannot be simplified further because y2 is not a perfect fourth power. Therefore, the final simplified expression is:3×x×4y2
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