Topic Details (Notes format)

How to Factor the Difference of Squares

Subject: Mathematics

Book: Maths Mastery

A difference of squares takes the form a² – b² and factors into (a – b)(a + b). For example, x² – 9 becomes (x – 3)(x + 3). This factoring pattern simplifies advanced algebraic expressions, helps solve polynomial equations quickly, and appears often in geometry proofs or optimization tasks. Recognizing a² – b² is crucial in polynomial manipulation, partial fraction decomposition, and problem-solving across arithmetic, geometry, and calculus contexts, making it a powerful tool in your algebraic toolkit.

Practice Questions

What is the LCM of 15 and 20?

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A cube has a side length of 4 cm. What is its volume?

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A sphere has a radius of 7 cm. What is its volume?

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If a+b = 10 and ab = 21, what is the value of a^3 + b^3?

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If the sum of three consecutive integers is 72, what are the integers?

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What is the probability of drawing an ace from a standard deck of 52 cards?

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A square is inscribed in a circle with a radius of 5 cm. What is the area of the square?

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What is the sum of all angles in a hexagon?

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The LCM of two numbers is 60, and their HCF is 5. If one of the numbers is 20, what is the other number?

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If 2x - 3 = 7, what is the value of x?

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