Problem

Simplify square root of (3x)/(23y)

The question is asking for the simplification of the expression containing a square root of a fraction. Specifically, the expression inside the square root is the fraction formed by the product of 3 and a variable x in the numerator and the product of 23 and another variable y in the denominator. The task is to rewrite this square root expression in a simpler or more reduced form, where possible, by applying the properties of square roots and fractions.

3x23y

Answer

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Solution:

Simplification of 3x23y

Step 1:

Express 3x23y as a quotient of square roots: 3x23y.

Step 2:

Rationalize the denominator by multiplying the fraction by 23y23y.

Step 3:

Simplify the expression in the denominator.

Step 3.1:

Combine the numerator and denominator: 3x23y23y23y.

Step 3.2:

Express the denominator as a power: 3x23y(23y)123y.

Step 3.3:

Repeat the expression of the denominator as a power: 3x23y(23y)1(23y)1.

Step 3.4:

Apply the exponent rule: 3x23y(23y)1+1.

Step 3.5:

Add the exponents: 3x23y(23y)2.

Step 3.6:

Simplify the square of a square root in the denominator.

Step 3.6.1:

Represent the square root as a power: 3x23y((23y)12)2.

Step 3.6.2:

Apply the power of a power rule: 3x23y(23y)122.

Step 3.6.3:

Multiply the exponents: 3x23y(23y)22.

Step 3.6.4:

Simplify the fraction of exponents.

Step 3.6.4.1:

Cancel out the common factors: 3x23y(23y)22.

Step 3.6.4.2:

Finalize the denominator: 3x23y(23y)1.

Step 3.6.5:

Simplify the expression: 3x23y23y.

Step 4:

Simplify the numerator.

Step 4.1:

Combine under a single radical: 3x23y23y.

Step 4.2:

Perform the multiplication inside the radical: 69xy23y.

Knowledge Notes:

  1. Square Root of a Quotient: The square root of a quotient can be expressed as a quotient of square roots, ab=ab.

  2. Rationalizing the Denominator: Involves multiplying the numerator and denominator by a conjugate or a suitable term to eliminate the square root from the denominator.

  3. Exponent Rules:

    • Power of a Power: (am)n=amn.

    • Product of Powers: aman=am+n.

  4. Simplifying Square Roots: a2=a, assuming a is non-negative.

  5. Multiplication Inside a Radical: The product rule for radicals states that ab=ab, provided a and b are non-negative.

  6. Simplifying Expressions: Involves combining like terms, applying exponent rules, and performing arithmetic operations to express the result in its simplest form.

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