Topic Details (Notes format)

How to Use Remainder Theorems (Polynomial Division)

Subject: Mathematics

Book: Maths Mastery

The Remainder Theorem states that the remainder when a polynomial f(x) is divided by (x – a) is simply f(a). For example, if you want the remainder when x² – 5x + 6 is divided by (x – 3), evaluate f(3) = 3² – 5×3 + 6 = 9 – 15 + 6 = 0. The Factor Theorem extends this, indicating if f(a) = 0, then (x – a) is a factor of the polynomial. These shortcuts alleviate long division and facilitate polynomial factoring, essential in solving polynomial equations, analyzing algebraic structures, and simplifying advanced math problems with speed and precision.

Practice Questions

The probability of rolling a sum of 7 with two dice is:

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If the probability of an event is 1/4, what is the probability of its complement?

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The probability of getting an even number when rolling a die is:

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The sides of a triangle are 13 cm, 14 cm, and 15 cm. What is its area?

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If x = 2 and y = 3, what is the value of (x^2 + y^2)?

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If 2x = 16, what is the value of x?

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What is the sum of the first 20 odd numbers?

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The LCM of 12 and 15 is:

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A triangle has angles 60°, 60°, and 60°. What type of triangle is it?

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What is the cube root of 729?

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