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

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

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What is the cube root of 729?

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If x:y = 2:3 and z:y = 4:3, what is x:z?

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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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How many diagonals does a pentagon have?

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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 the sum of the angles of a polygon is 1080°, how many sides does the polygon have?

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