How To Factor Expressions With Negative Numbers
| Education : Maths Some people get really confused when asked to factorise something like this: x^2 - 4x - 12 But all you need to remember is that the factor pairs will be ONE positive and ONE negative number here: the numbers will multiply to give - 12 and add to give - 4 This you can see -6 and 2 are the answer, as -6 x 2 = - 12 and 6 - (- 2) = -4 so, (x - 6)(x + 2) is the answer
 Questions about gcse maths:
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