كويز تفاعلي: The Remainder and Factor Theorem - Reveal
The Remainder Theorem and the Factor Theorem are fundamental concepts in algebra for analyzing polynomials. The Remainder Theorem states that when a polynomial \(f(x)\) is divided by \(x - c\), the remainder is equal to \(f(c)\). Building upon this, the Factor Theorem establishes a crucial link: \(x - c\) is a factor of the polynomial \(f(x)\) if and only if \(f(c) = 0\). These theorems allow for efficient factorization of higher-degree polynomials and identification of their roots without performing complex long division.
رقم الاختبار828
الصفالصف العاشر المتقدم
المادةرياضيات
الفصلالفصل الثالث
السنة الدراسية2025/2026
عدد الأسئلة10
إجمالي النقاط10
تاريخ الإضافة2026-04-21
الزيارات144
الناشرAmal Salman
يرجى الانتباه إلى أن المعلم قام بإعداد الأسئلة فقط، ولم يقم بإعداد الإجابات أو الشروحات المرفقة. وقد تم توليد الإجابات باستخدام تقنيات الذكاء الاصطناعي، لذلك قد تتضمن بعض الأخطاء أو عدم الدقة.
للحصول على الإجابات الصحيحة والمضمونة، يُرجى الرجوع إلى المعلم أو المصدر الدراسي المعتمد.
Question 1
Points: 1
Which binomial is a factor of f(x) = x3 - 6x2 + 3x + 10?
By the Factor Theorem, x + 1 is a factor if f(-1) = 0. Calculating f(-1) = (-1)3 - 6(-1)2 + 3(-1) + 10 = -1 - 6 - 3 + 10 = 0. Therefore, x + 1 is a factor.
Question 2
Points: 1
What is the remainder when a3 - 4 is divided by a + 2?
According to the Remainder Theorem, the remainder when a polynomial P(a) is divided by a + 2 is P(-2). Substituting a = -2 into a3 - 4 gives (-2)3 - 4 = -8 - 4 = -12.
Question 3
Points: 1
Which binomial is a factor of f(x) = x3 + x2 - 24x + 36?
Given f(4) = 0, x - 4 is a factor. Dividing the polynomial by x - 4 gives x2 - 2x - 3, which factors into (x + 1)(x - 3). Thus the complete factorization is (x - 4)(x + 1)(x - 3).
Since -3 is a zero, divide 2x3 + 5x2 - 6x - 9 by x + 3 to get 2x2 - x - 3. Factoring 2x2 - x - 3 gives (2x - 3)(x + 1), which yields zeros at 3/2 and -1. The full set of zeros is -3, -1, 3/2.
Question 9
Points: 1
Find all the factors of x3 - 3x2 - 4x + 12 given that -2 is a zero.
Since -2 is a zero, x + 2 is a factor. Dividing x3 - 3x2 - 4x + 12 by x + 2 results in x2 - 5x + 6, which factors further into (x - 2)(x - 3). The complete set of factors is (x + 2)(x - 2)(x - 3).
Question 10
Points: 1
Find all the real zeros of the function f(x) = 2x3 - 19x2 + 38x + 24 given that x - 4 is a factor.
Given x - 4 is a factor, 4 is a zero. Using synthetic or long division to divide the polynomial by x - 4 yields 2x2 - 11x - 6. Factoring this quadratic gives (2x + 1)(x - 6), providing zeros at -1/2 and 6. The real zeros are 4, -1/2, 6.
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