Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Representing Radicals with Exponents |
Grade: 8-b Lesson: S2-L1 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
Step | Type | Explanation | Answer |
---|---|---|---|
1 |
Problem |
Change the following exponential expressions to radical expressions \$14 x^(2/3)\$. |
|
2 |
Step |
Understand the exponent notation: The expression \$x^(2/3)\$ is in the form |
\$a^(m/n)\$, where a = x, m = 2 and n = 3 |
3 |
Formula: |
Apply the property of exponents and radicals: |
\$a^(m/n) = root(n)(a)^m\$ |
4 |
Step |
Substitute the components a = x, m = 2, and n = 3 into the property |
\$x^(2/3) = root(3)(x)^2\$ |
5 |
Step |
The original expression includes a constant multiplier, 14. Multiply the radical form by this constant: |
\$14 x^(2/3) = 14 root(3)(x)^2\$ |
6 |
Step |
The radical form of the given exponential expression is \$14 root(3)(x^2)\$. |
|
7 |
Choice.A |
This option is incorrect because it has the correct constant (14) but the wrong index and exponent |
\$14 root(2)(x^3)\$ |
8 |
Choice.B |
This option is incorrect because the constant should be 14, not 3, and the index should be 3, not 14 |
\$3 root(14)(x^2)\$ |
9 |
Choice.C |
This option is incorrect because the constant should be 14, not 2, the index should be 3, not 14, and the exponent inside the radical should be 2, not 3 |
\$2 root(14)(x^3)\$ |
10 |
Choice.D |
This option matches the correct conversion because the constant is correct (14), the index is correct (3), and the exponent inside the radical is correct (2) |
\$14 root(3)(x^2)\$ |
11 |
Answer |
Option |
D |
12 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
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