Question

решите:l3,8хl = 0; l 0,2х + 1,8 - 0,35хl = 1,1 * 2,1

Answer 1

l3,8хl=0
lxl=0
х=0

l0.2x+1.8 -0.35xl=1.1*2.1
l -0.15x+1.8l=2.31
2,31 >0

-0.15x+1.8=2.31
-0.15x=2.31-1.8
-0.15x= 0.51
x₁= -3.4

-0.15x+1.8= -2.31
-0.15x=-2.31-1.8
-0.15x= -4.11
0.15x=4.11
x₂= 27.4