Question

URGENTTTT....ex 5 a)....​

Answer 1

Răspuns:

2x{3x3x11:[2x2+(1x3- x)X2+1]}-18=0

2x{9x11:[4+(3- x)X2+1]}-18=0

2x{99:[4+(3- x)X2+1]}=0+18=18

{99:[4+(3-x)X2+1]}=18:2

99:[4+(3-x) X2+1]=9

[4+(3-x)X2+1]=99:9

4+(3-x)X2+1=11

4+(3-x)X2=11-1=10

(3-x)X2=10-4=6

(3-x)=6:2

3-x=3

x=3-3

x=0