Step-4

Title: Representing Radicals with Exponents

Grade: 8-b Lesson: S2-L1

Explanation: Hello Students, time to practice and review the steps for the problem.

Discussion: Step1 Step2 Step3 Step4 Step5

Lesson Steps

Step Type Explanation Answer

1

Problem

Change the following exponential expressions to radical expressions \$(9xy)^(1/3)\$.

2

Step

Given expression

\$(9xy)^(1/3)\$

3

Step

Understand the Exponent-to-Radical Conversion:

The exponent \$1/3\$ corresponds to the cube root.

4

Step

Rewrite Using Radical Notation:

Replace the exponent \$1/3\$ with the radical notation for the cube root.

5

Step

Express the Final Radical Form:

\$(9xy)^(1/3) = root(3)(9xy)\$

6

Step

The exponential expression \$(9xy)^(1/3)\$ as a radical expression is \$root(3)(9xy)\$.

7

Choice.A

This is incorrect because our original expression \$(9xy)^(1/3)\$ involves a cube root (not the 9th root)

\$root(9)(3xy)\$

8

Choice.B

This is the correct conversion of the given exponential expression to a radical expression

\$root(3)(9xy)\$

9

Choice.C

This is incorrect because our original expression \$(9xy)^(1/3)\$ involves a cube root (not the 6th root)

\$root(6)(3xy)\$

10

Choice.D

\$(9xy)^(1/3)\$ asks for the cube root, not the sixth root. Therefore, \$root(6)(9xy)\$ does not match the original expression

\$root(6)(9xy)\$

11

Answer

Option

B

12

Sumup

Can you summarize what you’ve understood in the above steps?

Discussion: Step1 Step2 Step3 Step4 Step5


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