Use the following facts. If x represents an integer, then x+1 represents the next consecutive integer. If x represents an even integer, then x+2 represents the next consecutive even integer. If x represents an odd integer, then x+2 represents the next consecutive odd integer. The difference of the squares of two positive consecutive odd integers is 32. Find the integers.
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
1. Equations & Inequalities
The Square Root Property
Problem 27
Textbook Question
Solve each equation using the square root property. 27 - x2 = 0
Verified step by step guidance1
Start with the given equation: \$27 - x^2 = 0$.
Isolate the squared term by subtracting 27 from both sides: \(-x^2 = -27\).
Multiply both sides by -1 to make the squared term positive: \(x^2 = 27\).
Apply the square root property, which states that if \(x^2 = a\), then \(x = \pm \sqrt{a}\), so write: \(x = \pm \sqrt{27}\).
Simplify the square root if possible by factoring 27 into its prime factors and extracting perfect squares.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Square Root Property
The square root property states that if x² = k, then x = ±√k. This method is used to solve equations where the variable is squared and isolated on one side. It allows for finding both positive and negative roots of the equation.
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Isolating the Variable Term
Before applying the square root property, the equation must be rearranged so that the squared term stands alone on one side. This involves moving constants or other terms to the opposite side through addition or subtraction.
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Equations with Two Variables
Simplifying Square Roots
After isolating the squared term and applying the square root property, simplifying the square root expression is necessary. This includes reducing radicals to simplest form and expressing answers in exact or decimal form as required.
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