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What expression is equivalent to 7sqrtx^2/5sqrty^3​

User Sunkas
by
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2 Answers

7 votes

Answer:

Step-by-step explanation:

Sounds as tho' possible answer choices were listed. Please, share them without being asked to do so. Thank you.

7√(x²) 7√(x²)

------------- = ----------------------

5 √(y³) 5√( y^(3/2) )

We want to get the fractional exponent out of the denominator. To do this, multiply both numerator and denominator by y^(1/2):

7√(x²) 7√(x²) y^(1/2) 7√(x²)·y^(1/2) 7x√y

------------- = --------------------- * ----------- = --------------------- = ----------

5 √(y³) 5√( y^(3/2) ) y^(1/2) 5 √(y²) 5y

This is the final answer. We have succeeded in removing radicals / fractional exponents from the denominator.

4 votes

Final answer:

The expression
(7√(x^2))/(5√(y^3)) can be simplified to
(7√(x^2))/(5y√(y)).

Step-by-step explanation:

Let's simplify the expression
(7√(x^2))/(5√(y^3)):

First, simplify the square root terms:


(7|x|)/(5√(y^3))

Now, combine the constants:


(7)/(5) \cdot (|x|)/(√(y^3))

To simplify further, you can rewrite
√(y^3) as
√(y^2 \cdot y) and then cancel out one of the y terms:


(7)/(5) \cdot (|x|)/(y√(y))

So, the simplified expression is
(7|x|)/(5y√(y)), or equivalently,
(7√(x^2))/(5y√(y)).

User Damian Yerrick
by
4.6k points