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Ch. P - Fundamental Concepts of Algebra
Blitzer - College Algebra 8th Edition
Blitzer8th EditionCollege AlgebraISBN: 9780136970514Non è quello che usi tu?Cambia libro di testo
Capitolo 1, Problema 36

Add or subtract terms whenever possible. 413x−613x4\(\sqrt{13x}\) - 6\(\sqrt{13x}\)

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1
Identify the like terms in the expression. Both terms have the radical \( \sqrt{13x} \), so they are like terms and can be combined.
Rewrite the expression to clearly show the coefficients and the radical: \( 4\sqrt{13x} - 6\sqrt{13x} \).
Combine the coefficients of the like terms by subtracting: \( 4 - 6 = -2 \).
Multiply the result by the common radical term: \( -2 \times \sqrt{13x} \).
Write the simplified expression as \( -2\sqrt{13x} \).

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Like Terms

Like terms are terms that have the same variable parts raised to the same powers. In this problem, terms involving √13x are like terms because they share the same radical expression. Only like terms can be added or subtracted by combining their coefficients.
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Adding & Subtracting Like Radicals

Simplifying Radicals

Simplifying radicals involves expressing the radical in its simplest form by factoring out perfect squares. Here, √13x is already simplified, so no further simplification is needed before combining terms. Recognizing simplified radicals helps in correctly identifying like terms.
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Adding & Subtracting Unlike Radicals by Simplifying

Combining Like Terms

Combining like terms means adding or subtracting their coefficients while keeping the variable or radical part unchanged. For example, 4√13x − 6√13x equals (4 − 6)√13x = −2√13x. This process simplifies expressions and is essential for solving algebraic problems efficiently.
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Combinations