Topic Details (Notes format)

How to Solve Quadratic Equations by Factoring

Subject: Mathematics

Book: Maths Mastery

Factoring is a more intuitive method for solving ax² + bx + c = 0 when the polynomial can be expressed as a product of two binomials. For instance, x² + 5x + 6 factors to (x + 2)(x + 3) = 0, giving solutions x = –2 or x = –3. The approach requires identifying two numbers that multiply to ac and add to b. While factoring is not always possible with neat integers, it’s efficient when applicable. This method is widely used in geometry, business break-even analyses, and logic puzzles. Practicing with different coefficients develops a keen sense for pattern recognition and polynomials.

Practice Questions

A rectangle has an area of 48 cm² and a length of 8 cm. What is its width?

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What is the cube of 4?

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What is the probability of drawing a king from a standard deck of 52 playing cards?

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What is the sum of the interior angles of a hexagon?

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If x² - 9x + 18 = 0, what are the roots of the equation?

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What is the sum of all angles in a hexagon?

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If the angles of a triangle are in the ratio 2:3:4, what is the measure of the largest angle?

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If a cone has a base radius of 3 cm and height of 4 cm, what is its slant height?

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The area of an equilateral triangle with side length 6 cm is:

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If a rectangle has a length of 10 cm and a width of 6 cm, what is its perimeter?

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