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Rewrite the expression with rational exponents as a radical expression.

[tex]9 x^{\frac{3}{2}}[/tex]

A. [tex]9 \sqrt{x^3}[/tex]
B. [tex]\sqrt{9 x^3}[/tex]
C. [tex]9 \sqrt[3]{x^2}[/tex]
D. [tex]\sqrt[3]{9 x^2}[/tex]


Sagot :

To rewrite the expression [tex]\(9x^{\frac{3}{2}}\)[/tex] as a radical expression, we need to follow these steps:

1. Understand the Rational Exponent:
The exponent [tex]\(\frac{3}{2}\)[/tex] can be interpreted in terms of radicals.

- The denominator of the fraction (2) indicates a square root.
- The numerator (3) indicates that the base [tex]\(x\)[/tex] is raised to the power of 3.

2. Rewrite the Expression:
We rewrite [tex]\(x^{\frac{3}{2}}\)[/tex] using radical notation. The expression inside the exponent can be broken down as follows:

[tex]\[ x^{\frac{3}{2}} = (x^3)^\frac{1}{2} = \sqrt{x^3} \][/tex]

3. Combine with the Coefficient:
Now, we need to reattach the coefficient 9, which was originally multiplied by [tex]\(x^{\frac{3}{2}}\)[/tex].

Therefore, the full expression [tex]\(9x^{\frac{3}{2}}\)[/tex] in radical form is:
[tex]\[ 9 \cdot \sqrt{x^3} \][/tex]

So, rewriting [tex]\(9x^{\frac{3}{2}}\)[/tex] as a radical expression gives us:

[tex]\[ 9 \sqrt{x^3} \][/tex]

This correctly transforms the expression with a rational exponent into its equivalent radical form.