Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
![**Simplifying Radical Expressions: Worked Example**
In this example, we aim to simplify the radical expression \( \sqrt[3]{32k^4} \). Follow along to see each step of the process and where errors might occur.
### Step-by-step Solution:
1. **Initial Expression**:
\[
\sqrt[3]{32k^4}
\]
2. **Incorrect First Attempt**:
\[
\sqrt[3]{k \times \boxed{\phantom{x}}} \cdot 4k \quad \textcolor{red}{\text{(Incorrect)}}
\]
3. **Second Attempt**:
\[
\sqrt[3]{k \times \boxed{\phantom{x}}} \times \sqrt[3]{4k} \quad \textcolor{red}{\text{(Incorrect)}}
\]
4. **Third Attempt**:
\[
2k \sqrt[3]{k \times \boxed{\phantom{x}}} \quad \textcolor{red}{\text{(Incorrect)}}
\]
### Points to Note:
- Each step tried to decompose or simplify the original expression differently.
- Each step is marked with a red "X" indicating it is incorrect.
**Key Concepts to Correct Solutions**:
1. Recognize that \( 32k^4 \) can be written in the form \( 32 \cdot k^4 \).
2. Break down \( 32 \) into a power of 2: \( 32 = 2^5 \).
3. Use the property of radicals: \( \sqrt[3]{a \cdot b} = \sqrt[3]{a} \cdot \sqrt[3]{b} \).
4. Recognize the simplification inside the cube root.
Correct Simplification Steps:
\[
\sqrt[3]{32k^4} = \sqrt[3]{2^5 \cdot k^4} = \sqrt[3]{2^5} \cdot \sqrt[3]{k^4}
\]
\[
\sqrt[3]{2^5} = 2 \sqrt[3]{2^2}
\]
\[
\sqrt[3]{k^4} = k \cdot \sqrt[3]{k}
\]
\[
\therefore \sqrt[](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5c8e8955-7b00-44a9-a272-a38b187e6aa8%2F3ae13699-7449-4ab4-915b-c6d5eb88460d%2Ffwjzc6j_processed.png&w=3840&q=75)
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