Hi!!
Calculons x:
1) 2x -2 = 0
2x = 2
x= 2/2
x = 1
2). 2x + 2 = 0
2x = -2
x = -2/2
x= -1
Salut !!
Explications étape par étape:
1- 2x-2=0
2x=0+2
2x=2
X=2/2
X=1
2- 2x+2=0
2x=-2=> X=-1
