Page 3: Polynomial Division, Bézout's Theorem, and Polynomial Equations

This final page focuses on practical applications of Twierdzenie Bezouta (Bézout's Theorem) in polynomial division and solving polynomial equations. It provides a series of example problems that demonstrate the theorem's utility in various mathematical contexts.

The page begins with examples of polynomial division using the Schemat Hornera (Horner's method), which is closely related to Bézout's Theorem. This method is particularly efficient for evaluating polynomials and performing polynomial division.

Example: The problem W(x) = x³ + 4x² + x - 6 divided by (x - 1) is solved using Horner's method, demonstrating its efficiency in polynomial division.

The page then transitions to solving polynomial equations, which is a direct application of Bézout's Theorem and the factoring techniques discussed on the previous pages.

Highlight: Solving polynomial equations often involves finding the roots of the polynomial, which is where Bézout's Theorem proves particularly useful.

Several example problems are presented, ranging from simple quadratic equations to more complex higher-degree polynomial equations. These problems illustrate how to:

1. Factor polynomials to solve equations
2. Use the zero product property in conjunction with Bézout's Theorem
3. Solve equations involving perfect square trinomials and difference of squares

Vocabulary: Równania wielomianowe refers to polynomial equations, which are equations where the variable appears in various powers.

The page concludes with more advanced problems that combine multiple concepts, such as factoring, Bézout's Theorem, and solving systems of polynomial equations.

Example: The problem (x² + 1)³ - x² = 0 is solved by clever factoring and application of Bézout's Theorem, demonstrating the power of these combined techniques.

This page effectively ties together the concepts from the entire document, showing how Twierdzenie Bezouta (Bézout's Theorem) serves as a fundamental tool in polynomial algebra, from basic division to solving complex equations.

Page 1: Introduction to Bézout's Theorem and Example Problems

This page introduces Twierdzenie Bezouta (Bézout's Theorem) and provides several example problems to illustrate its application. The theorem is fundamental in polynomial algebra, particularly for dzielenie wielomianów (polynomial division) and finding pierwiastek wielomianu (roots of polynomials).

Definition: Bézout's Theorem states that a polynomial W(x) is divisible by (x - a) if and only if W(a) = 0.

The page presents four example problems demonstrating the use of Bézout's Theorem:

1. Finding the remainder when dividing W(x) = x² - 5x³ + 2x - 4 by a linear factor.
2. Proving that 2 is a root of the polynomial W(x) = x⁵ - 2x⁴ - 15x³ + 30x² - 16x - 32.
3. Verifying multiple roots of a polynomial.
4. Solving for unknown coefficients in a polynomial given certain conditions.

Example: In problem 2, the theorem is applied to show that W(2) = 0, proving that 2 is indeed a root of the polynomial.

The page also introduces the concept of using a Twierdzenie Bezouta tabelka (Bézout's table) for efficient polynomial evaluation, which is closely related to the Schemat Hornera (Horner's method).

Highlight: The problems on this page demonstrate how Bézout's Theorem can be used to find roots, verify divisibility, and solve for unknown coefficients in polynomials.