Evaluate each expression. (4-2³)(-2+√25)
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- 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 94
Textbook Question
Evaluate each expression. (5-3²)(√16-2³)
Verified step by step guidance1
First, evaluate the exponent in the expression: calculate \$3^2\( and \)2^3$ separately.
Next, substitute these values back into the expression to simplify inside the parentheses: \((5 - 3^2)\) becomes \((5 - \text{value})\) and \((\sqrt{16} - 2^3)\) becomes \((\sqrt{16} - \text{value})\).
Then, evaluate the square root \(\sqrt{16}\).
After that, perform the subtraction inside each set of parentheses to simplify both expressions.
Finally, multiply the two simplified results together to get the value of the entire expression.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Order of Operations
The order of operations is a set of rules that dictate the sequence in which mathematical operations should be performed to ensure consistent results. It is commonly remembered by the acronym PEMDAS: Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right). Applying this order correctly is essential to evaluate expressions accurately.
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Exponents
Exponents represent repeated multiplication of a base number. For example, 3² means 3 multiplied by itself (3 × 3 = 9). Understanding how to calculate powers is crucial for simplifying expressions involving exponents before performing other operations.
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Rational Exponents
Square Roots
The square root of a number is a value that, when multiplied by itself, gives the original number. For instance, √16 equals 4 because 4 × 4 = 16. Recognizing and simplifying square roots is important when evaluating expressions that include radical signs.
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