Method
First Look for a term (i.e x , y, z) which is in all the compoents
Also look if there is a possible common factor that the compoents share
Soloution
x is a shared term , and 2 is a common multiple
The common factor is 2x
2x(2y-3z) = (2x.2y)-(2x-3z)
= 4xy-6xz