Chapter 7: Problem 28
Simplify. $$ \sqrt[3]{-c^{6}} $$
Short Answer
Expert verified
\((-c^{2})\)
Step by step solution
01
Understand the Cube Root
The cube root of a number is a value that, when multiplied by itself twice, gives the original number. For cube roots, the symbol is \( \sqrt[3]{...} \).
02
Simplify the Expression Inside the Cube Root
The expression inside the cube root is \( -c^{6} \). We can rewrite this as \( (-1) \cdot (c^{6}) \).
03
Take the Cube Root of -1
The cube root of \( -1 \) is \( -1 \) because \( (-1) \cdot (-1) \cdot (-1) = -1 \). So, \( \sqrt[3]{-1} = -1 \).
04
Simplify the Cube Root of \\( c^{6} \\\\)
Taking the cube root of \( c^{6} \) gives us \( c^{6/3} = c^{2} \). This is because \( c^{6} = (c^{2})^{3} \).
05
Combine the Results
Combine the results from Steps 3 and 4: \( \sqrt[3]{-c^{6}} = (-1) \cdot c^{2} = -c^{2} \).
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Cube Roots
Understanding cube roots is essential to simplifying expressions like \( \sqrt[3]{-c^6} \). A cube root helps us find a number that, when multiplied by itself twice, gives us the original value. For example, if we have \( x = \sqrt[3]{y} \), then \( x \cdot x \cdot x = y \). Cube roots are represented using the symbol \( \sqrt[3]{...} \). Here, the '3' indicates that we are trying to find a cube root, as opposed to a square root which would be \( \sqrt{...} \).
- Cubes involve multiplying a number three times by itself.
- Cube roots help reverse this operation, revealing the original base number.
Exponents
Exponents are a way to express repeated multiplication of the same number. For instance, \(a^6\) means \(a \cdot a \cdot a \cdot a \cdot a \cdot a\). They are crucial in scientific notation and algebra for simplifying complex expressions. When dealing with cube roots like in our example \(\sqrt[3]{-c^6}\), it's important to understand how exponents interact with roots.
- Using exponents enables us to express large numbers more easily.
- They are tightly connected with roots, helping us simplify roots like cube roots and square roots.
Negative Numbers
Negative numbers are numbers less than zero. They are represented with a minus sign \(-\) in front. Understanding them is important in algebra and complex calculations. In the context of cube roots, negative numbers have interesting properties. Let's explore.
- Negative numbers can be multiplied three times to give a negative result, unique to cube roots.
- They often appear in real-life calculations, adding depth to graph plots and real processes.