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Foundations of Mathematics 120
Relations and Functions
13. Represent data, using polynomial functions (of degree ≤ 3), to solve problems
13.5 Factor theorem
Factor Theorem: The Cornerstone of Polynomial Mathematics
Dive into the Factor Theorem and revolutionize your approach to polynomials. Master factoring, root-finding, and graphing techniques. Elevate your algebra prowess and conquer complex equations with confidence.
What You'll Learn
Apply the Factor Theorem to determine if a binomial is a factor of a polynomial
Evaluate polynomials at specific values to find remainders and verify factors
Connect the Remainder Theorem and Factor Theorem to identify polynomial roots
Recognize that when p(a) = 0, then (x - a) is a factor and x = a is an x-intercept
Solve for unknown coefficients in polynomials using factor and remainder conditions
What You'll Practice
1
Testing binomials like (x - 2) and (x + 1) to verify if they are factors
2
Evaluating polynomials at given values to check if the result equals zero
3
Working with binomials in the form (ax + b) by solving for x-values
4
Finding unknown coefficients using systems of equations from factor and remainder information
Why This Matters
The Factor Theorem is essential for finding roots and x-intercepts of polynomial functions, which is critical for graphing and solving higher-level equations. It connects directly to calculus, where identifying zeros helps you analyze function behavior and optimize real-world problems.
Before You Start — Make Sure You Can:
This Unit Includes
3 Video lessons
Practice exercises
Learning resources
Skills
Factor Theorem
Polynomials
Remainder Theorem
Roots and Zeros
Polynomial Evaluation
Binomial Factors
Systems of Equations
NB Curriculum Aligned