Problem

Write the following expression in simplified radical form.
80x8y154

Assume that all of the variables in the expression represent positive real numbers.

Answer

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Answer

2x2y35y34 is the final answer.

Steps

Step 1 :The given expression is a fourth root. To simplify it, we need to find the factors of the number and the variables that are perfect fourth powers.

Step 2 :For the number 80, the perfect fourth power factor is 16 (since 24=16).

Step 3 :For the variable x, x8 is a perfect fourth power since (x2)4=x8.

Step 4 :For the variable y, y12 is a perfect fourth power since (y3)4=y12.

Step 5 :The remaining factors, 5 and y3, cannot be simplified further.

Step 6 :Therefore, the simplified radical form of the expression is 2x2y3 times the fourth root of 5y3.

Step 7 :2x2y35y34 is the final answer.

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