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Mara Denesik ∙
ProfBot
To factorize the expression X^2 - 4x, we look for common factors. In this case, both terms have a common factor of x. So we can factor out an x to get x(x - 4). This is the factored form of the expression X^2 - 4x.
http://wiki.answers.com/Q/Factorise_X2_-_4x =x(x-4)
x2 + 4x = x(x + 4)
6
1
x2 + 6x = x*(x + 6)
38
X2 + 4xx(x + 4)=======
X(X2 - X)
1(x2-1)
12
4x-x2 = 2
x2-196 = (x-14)(x+14) when factored