The technique of factorising a quadratic expression has been explained on the leaflet Factorising quadratic expressions. There is a special case of quadratic
Difference Between Two Squares. Video 120 on www.corbettmaths.com. Question 1: Factorise each of the following. (a) x² ? 25. (b) y² ? 49. (c) w² ? 100.
Categorisation: Factorise a difference of two squares involving squared brackets followed by subsequent factorisation of common factors. [Edexcel IGCSE Jan2014
Answers to Factoring the Difference of Squares. 1) (3x + 1)(3x ? 1). 2) (2n + 7)(2n ? 7). 3) (6k + 1)(6k ? 1). 4) (p + 6)(p ? 6). 5) 2(x + 3)(x ? 3).
Difference Between Two Squares. Video 120 on www.corbettmaths.com. Question 1: Factorise each of the following. (a) x² ? 25. (b) y² ? 49. (c) w² ? 100.
The technique for factoring a difference of two squares follows from the following observations: If a and b are any numbers or algebraic expressions then.
Factorising by inspection. 4. 5. Expressions where the coefficient of x2 is not 1. 5. 6. Special case 1 - the difference of two squares.
Difference between two squares. Workout. Question 1. (a) (x ? 5)(x + 5). (b). (y ? 7)(y + 7). (c). (w ? 10)(w + 10). (d). (x ? 2)(x + 2).
'factorising' as the opposite of expanding. Key Definition: The difference of two squares is when we are subtracting two 'square things' e.g..
Factorise the following expressions. 1) x² - 25. 2) x² - 100 A lot of numbers can be written as the difference between two squares. For example.