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🔍 PREVIEW MODE – Only you can see this. Back to Admin EduTek Lesson Notes Shop Print PDF Home › SS › Mathematics › Partial Fractions SS 2 Rational Expressions and Partial Fractions Mathematics SS 2 Second Term Introduction to Rational Expressions A rational expression is a fraction where the numerator and denominator are polynomials. 📌 Definition: A rational expression is of the form P(x)/Q(x), where Q(x) ≠ 0. Examples of Rational Expressions: 2x + 1 (denominator = 1) 3x - 5 / 2x + 1 x² + 3x - 1 [Preview only]