# Difference of Two Squares Worksheets

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## Difference of Two Squares Worksheet Practice

## Difference of Two Squares Examples

Quadratic equations have highest order of 2 (x^{2}). There are four main ways to solve quadratic equations: factorising, quadratic formula, graphical method and completing the square. Some quadratic equations can be factorised using the difference of two squares. The difference of two squares takes the form a^{2} - b^{2} = (a + b)(a - b).

## How To Solve Difference of Two Squares

When solving quadratic equations by difference of two squares we factor into the form (a + b)(a – b). For example x^{2} - 25 = (x + 5)(x - 5), x^{2} - 16 = (x - 4)(x + 4), 4x^{2} - 144 = (2x - 12)(2x + 12), and so on. Below contains four examples of factorising the difference of two squares.

**For questions on quadratic equations try here: Quadratic Equations Worksheets.**

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**For questions on completing the square try here: Completing The Square Worksheets. For quadratic formula questions try here: Quadratic Formula Worksheets. For solving quadratic equations try: Solving Quadratic Equations Worksheets. **