Sohe 2x² -5x+3=0by the by factorisation method​

=2x²-3x-2x+3

=(2×-3)(×-1)

actually what confuses you is that 3×2 is 6band we have 3 in last term. .but see 2 is also with x² term...and when there is coefficient of x² other than 1 we imagine it is multiplied and is 6