(2,5х-4) (6х+1.8)=0 ???

Question

(2,5х-4) (6х+1.8)=0 ???

Answer 1

(2,5x-4)(6x+1,8)=0

1.
2,5x-4=0
2,5x=4
x=4/2,5=1,6

2.
6x+1,8=0
6x=-1,8
x=-1,8/6=-0,3