Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. r7/r10
Table of contents
- 0. Review of Algebra4h 18m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations1h 43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 5m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 22m
- 10. Combinatorics & Probability1h 45m
0. Review of Algebra
Exponents
Problem 5
Textbook Question
Perform the indicated operation, and write each answer in lowest terms. 2x/5 ∙ 10/x2
Verified step by step guidance1
Identify the given expression to multiply: \(\frac{2x}{5} \times \frac{10}{x^{2}}\).
Multiply the numerators together and the denominators together: \(\frac{2x \times 10}{5 \times x^{2}}\).
Simplify the numerator and denominator separately: numerator becomes \$20x\(, denominator becomes \)5x^{2}\(, so the expression is \)\frac{20x}{5x^{2}}$.
Factor and reduce common factors in numerator and denominator: divide both numerator and denominator by \$5x$ to simplify the fraction.
Write the simplified expression after canceling common factors, ensuring the answer is in 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 Rational Expressions
Multiplying rational expressions involves multiplying the numerators together and the denominators together. Each expression is treated like a fraction, so the product is a new fraction formed by these products.
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Simplifying Algebraic Expressions
Simplifying involves reducing expressions to their simplest form by canceling common factors in the numerator and denominator. This often requires factoring and recognizing common terms to eliminate.
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Exponents and Their Properties
Understanding how to handle exponents is crucial, especially when multiplying terms with the same base. The product rule states that when multiplying like bases, you add their exponents, which helps simplify expressions involving powers.
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Rational Exponents
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