Determine whether each statement is true or false. If false, correct the right side of the equation. (y2)(y5) = y7
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
Radical Expressions
Problem 3
Textbook Question
Evaluate each exponential expression in Exercises 1–22. (−2)6
Verified step by step guidance1
Identify the base and the exponent in the expression. Here, the base is \((-2)\) and the exponent is \$6$.
Recall that raising a number to an exponent means multiplying the base by itself as many times as the exponent indicates. So, \((-2)^6\) means \((-2) \times (-2) \times (-2) \times (-2) \times (-2) \times (-2)\).
Since the exponent is even, multiplying a negative number an even number of times results in a positive number. This is because each pair of negative factors multiplies to a positive.
Calculate the value step-by-step by pairing the factors: for example, \((-2) \times (-2) = 4\), then multiply the result by the next \((-2)\), and so on until all six factors are multiplied.
Write the final product after completing all multiplications to find the value of \((-2)^6\).
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Exponents and Powers
Exponents indicate how many times a base number is multiplied by itself. For example, in (−2)^6, the base is −2 and the exponent 6 means multiplying −2 by itself six times.
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Negative Base with Even Exponent
When a negative number is raised to an even exponent, the result is positive because multiplying an even number of negative factors results in a positive product.
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Introduction to Exponent Rules
Order of Operations and Parentheses
Parentheses indicate that the entire base, including the negative sign, is raised to the exponent. Without parentheses, only the number is raised to the power, and the negative sign is applied afterward.
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