Question 604839
{{{2x^2-5x-12=0}}}
Find 2 numbers a and b so that 
a*b = 2*(-12) =-24
and
a+b = -5
the numbers are -8 and 3
-8 is divisible by 2 -> -8/2 = -4


2x^2 can be separated as 2x*x


so, the factorization will be:
(2x + 3)(x - 4)=0
2x + 3 = 0 or x - 4 = 0
2x = -3 or x = 4
x = -3/2 or x = 4