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Select an expression that is equivalent to [tex]$\sqrt[4]{2 x^2} \cdot \sqrt[4]{2 x^3}$[/tex]

Sagot :

Let's solve the given problem step-by-step.

We start with the expressions:

[tex]\[ \sqrt[4]{2 x^2} \quad \text{and} \quad \sqrt[4]{2 x^3} \][/tex]

First, we convert these expressions into a more manageable form using fractional exponents:

1. The first expression [tex]\(\sqrt[4]{2 x^2}\)[/tex] can be written as:
[tex]\[ (2 x^2)^{\frac{1}{4}} \][/tex]

2. The second expression [tex]\(\sqrt[4]{2 x^3}\)[/tex] can be written as:
[tex]\[ (2 x^3)^{\frac{1}{4}} \][/tex]

Next, let's simplify each of these expressions individually:

For the expression [tex]\((2 x^2)^{\frac{1}{4}}\)[/tex]:
[tex]\[ (2 x^2)^{\frac{1}{4}} = (2)^{\frac{1}{4}} \cdot (x^2)^{\frac{1}{4}} = 2^{\frac{1}{4}} \cdot x^{\frac{2}{4}} = 2^{\frac{1}{4}} \cdot x^{\frac{1}{2}} \][/tex]

For the expression [tex]\((2 x^3)^{\frac{1}{4}}\)[/tex]:
[tex]\[ (2 x^3)^{\frac{1}{4}} = (2)^{\frac{1}{4}} \cdot (x^3)^{\frac{1}{4}} = 2^{\frac{1}{4}} \cdot x^{\frac{3}{4}} \][/tex]

Now, we multiply these two simplified expressions together:
[tex]\[ (2 x^2)^{\frac{1}{4}} \cdot (2 x^3)^{\frac{1}{4}} = \left(2^{\frac{1}{4}} \cdot x^{\frac{1}{2}}\right) \cdot \left(2^{\frac{1}{4}} \cdot x^{\frac{3}{4}}\right) \][/tex]

Combining the constants and exponents, we have:
[tex]\[ 2^{\frac{1}{4}} \cdot 2^{\frac{1}{4}} \cdot x^{\frac{1}{2}} \cdot x^{\frac{3}{4}} = 2^{\frac{1}{4} + \frac{1}{4}} \cdot x^{\frac{1}{2} + \frac{3}{4}} \][/tex]

Simplifying the exponents, we get:
[tex]\[ 2^{\frac{2}{4}} \cdot x^{\frac{2}{4} + \frac{3}{4}} = 2^{\frac{1}{2}} \cdot x^{\frac{5}{4}} \][/tex]

Finally, simplify further:
[tex]\[ 2^{\frac{1}{2}} = \sqrt{2} \][/tex]

Thus, the equivalent expression is:
[tex]\[ \sqrt{2} \cdot x^{\frac{5}{4}} \][/tex]

Numerically, [tex]\(\sqrt{2} \approx 1.41421356237309\)[/tex]. Therefore, the final expression is:

[tex]\[ 1.41421356237309 \cdot x^{\frac{5}{4}} \][/tex]

So, [tex]\(\sqrt[4]{2 x^2} \cdot \sqrt[4]{2 x^3}\)[/tex] is equivalent to:

[tex]\[ 1.41421356237309 \cdot (x^2)^{\frac{1}{4}} \cdot (x^3)^{\frac{1}{4}} = 1.41421356237309 \cdot x^{\frac{5}{4}} \][/tex]