How do you factor #3x^2 - 12#?
1 Answer
Jan 2, 2016
3(x-2)(x+2)
Explanation:
when factorising follow these steps
(1) is there a common factor?
(2) is it a trinomial ?
(3) is it a difference of 2 squares ?
in this case there is a common factor of 3 (1)
inside the bracket is a difference of 2 squares (3)
so