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

If the sum of three consecutive integers is 96, what are the integers?

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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 greatest common divisor (GCD) of 36 and 48?

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If the length of a rectangle is doubled and the width is halved, what is the change in area?

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If a cylinder has a radius of 7 cm and height of 10 cm, what is its volume?

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What is the sum of all even numbers between 1 and 100?

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

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

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

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

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