Simplify each expression. Write answers without negative exponents. Assume all vari-ables represent nonzero real numbers. See Examples 5 and 6. r7/r10
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- 0. Review of Algebra4h 18m
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- 2. Graphs of Equations1h 43m
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- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
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0. Review of Algebra
Exponents
Problem 5
Textbook Question
Perform the indicated operation, and write each answer in lowest terms. 2x/5 * 10/x^2
Verified step by step guidance1
Identify the operation to be performed: multiplication of two fractions \( \frac{2x}{5} \) and \( \frac{10}{x^2} \).
Multiply the numerators together: \( 2x \times 10 \).
Multiply the denominators together: \( 5 \times x^2 \).
Simplify the resulting fraction by canceling out any common factors in the numerator and the denominator.
Write the simplified fraction in its lowest terms.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Multiplication of Fractions
To multiply fractions, you multiply the numerators together and the denominators together. For example, in the expression (a/b) * (c/d), the result is (a*c)/(b*d). This concept is essential for simplifying expressions involving fractions, as it allows for straightforward calculations.
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Simplifying Fractions
Simplifying fractions involves reducing them to their lowest terms by dividing both the numerator and the denominator by their greatest common divisor (GCD). This process makes fractions easier to work with and understand, ensuring that the final answer is presented in the simplest form.
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Variable Exponents
In algebra, variables can have exponents that indicate how many times the variable is multiplied by itself. When multiplying variables with exponents, you add the exponents if the bases are the same. Understanding how to manipulate these exponents is crucial for simplifying expressions that involve variables.
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