Topic Details (Notes format)

How to Factor Algebraic Expressions (Common Factor)

Subject: Mathematics

Book: Maths Mastery

Factoring out the greatest common factor (GCF) is a fundamental technique to simplify expressions and solve equations. Suppose you have 6x² + 9x; the GCF is 3x. Factoring yields 3x(2x + 3). This step often precedes more complex factoring methods like grouping or the difference of squares. By extracting the GCF, you reduce expressions to simpler forms, streamline solutions, and clarify how individual terms relate. This skill is vital in advanced algebra, polynomial arithmetic, and a variety of real-life applications that demand systematic problem decomposition.

Practice Questions

The base of a triangle is 10 cm and its height is 6 cm. What is its area?

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What is the length of the diagonal of a square with a side length of 7 cm?

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The simple interest on Rs. 4000 at 5% per annum for 2 years is:

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If a cone has a radius of 5 cm and a height of 12 cm, what is its slant height?

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What is the LCM of 15 and 20?

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The perimeter of a rectangle is 40 cm, and its length is 12 cm. What is its width?

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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 ratio of two numbers is 3:5 and their HCF is 4, what are the numbers?

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What is the slope of a line passing through the points (2, 3) and (4, 7)?

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What is the remainder when 5^100 is divided by 3?

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