Question

3,5x - 7x² = 0 Срочно!!!

Answer 1

3,5х(1-2х)=0
3,5х=0   х=0
1-2х=0  х=0,5

Answer 2

х(3.5-7х)=0
х=0. 3.5-7х=0
-7х=-3.5
х=0.5