Discrete Mathematics 3
★ 5.0 rated · $9.99
Precalculus 2: Polynomials and rational functions
The Algebra 2 topics of polynomials and rational functions, preparing for studies of Calculus
Taught by ⋮ Hania Uscka-Wehlou
Total Enrolments : 4,180Teaching & Academics
$9.99 with coupon (list $149.99 — save $140.00, 93% off)
Coupon Verified: October 5, 2026 · click Claim Coupon to apply the discount code
Is the Precalculus 2: Polynomials and rational functions Coupon Worth It?
Our verdict: worth it — as long as the Teaching & Academics skills on the syllabus match what you actually want to learn. The regular price for Precalculus 2: Polynomials and rational functions on Udemy is $149.99. With the coupon code on this page, that falls to $9.99 — a saving of $140.00, or 93% off the standard rate Spread across 42h of on-demand video, that works out to roughly $0.24 per hour of content — cheaper than a single chapter of most printed Teaching & Academics textbooks.
A cheap price means nothing if the material is thin — here the syllabus is organized around usable outcomes. Hania Uscka-Wehlou walks you through how to solve problems concerning polynomials or rational functions (illustrated with 160 solved problems) and why these methods work, definition and basic terminology for polynomials: variable, coefficient, degree; a brief repetition about powers with rational exponents, and main power rules, and arithmetical operations (addition, subtraction, multiplication) on polynomials; the polynomial ring R[x] — skills meant to be used, not just watched. It has already been taken by 4,180 students and holds a 4.9-star average from verified reviews, which suggests the content holds up once learners actually apply it.
Check the prerequisites before you commit: High-school mathematics, mainly arithmetic; Precalculus 1: Basic notions (mainly the concept of function and related concepts; sets; logic). Best suited to learners who already have footing in Teaching & Academics. Plan for roughly 42h of on-demand video at your own pace. Lessons are delivered in English.
Pros
- ✓Confirmed 93% price cut, checked by hand.
- ✓Strong learner feedback (4.9 out of 5).
- ✓Taken by 4,180 students so far.
- ✓Completion certificate plus lifetime access.
Cons
- !The coupon can expire without warning — after that, expect something close to the standard $149.99.
- !Lifetime access depends on Udemy itself; platform policies can always change.
- !Set aside extra hours for exercises and quizzes beyond the 42h of video.
What You'll Learn
Practical skills and outcomes you'll gain from Precalculus 2: Polynomials and rational functions — taken from the official Udemy syllabus for Teaching & Academics learners.
How to solve problems concerning polynomials or rational functions (illustrated with 160 solved problems) and why these methods work.
Definition and basic terminology for polynomials: variable, coefficient, degree; a brief repetition about powers with rational exponents, and main power rules.
Arithmetical operations (addition, subtraction, multiplication) on polynomials; the polynomial ring R[x].
Completing the square for solving second degree equations and plotting parabolas; derivation of the quadratic formula.
Polynomial division: quotient and remainder; three methods for performing the division: factoring out the dividend, long division, undetermined coefficients.
Vieta's formulas for quadratic and cubic polynomials; Binomial Theorem (proof will be given in Precalculus 4) as a special case of Vieta's formulas.
The Remainder Theorem and The Factor Theorem with many applications; the proofs, based on the Division Theorem (proven in an article), are presented.
Ruffini-Horner Scheme for division by monic binomials of degree one, with many examples of applications; the derivation of the method is presented.
Requirements
What you need before enrolling in Precalculus 2: Polynomials and rational functions — prerequisites as listed by the instructor on Udemy.
High-school mathematics, mainly arithmetic
Precalculus 1: Basic notions (mainly the concept of function and related concepts; sets; logic)
You will get a very brief introduction to *systems of linear equations* in this course (in Section 4), just enough for the needs of our applications (methods by undetermined coefficients, e.g. for partial fraction decomposition)
You will get a very brief introduction to *complex numbers* in this course (in Section 5), just enough for the needs of our applications (factoring polynomials)
You are always welcome with your questions. If something in the lectures is unclear, please, ask. It is best to use QA, so that all the other students can see my additional explanations about the unclear topics. Remember: you are never alone with your doubts, and it is to everybody's advantage if you ask your questions on the forum.
Overview
The full official description of Precalculus 2: Polynomials and rational functions — curriculum, teaching approach, and everything included with this Udemy coupon.
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Frequently Asked Questions
Common queries about this coupon, pricing, and enrollment. Answers reflect our last check on October 5, 2026.
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