Sagot :
Bonsoir,
-8x²+2 = 0
-8x² = -2
x² = -2/(-8)
x² = 1/4
x = √(1/4) ou x = -√(1/4)
x = 1/2 ou x = -1/2
bonsoir
- 8 x² + 2 = 0
2 ( - 4 x² + 1 ) = 0
- 4 x² + 1 = 0
- 4 x² = - 1
x² = 1/4
x = √1/4 ou - √ 1/4
Bonsoir,
-8x²+2 = 0
-8x² = -2
x² = -2/(-8)
x² = 1/4
x = √(1/4) ou x = -√(1/4)
x = 1/2 ou x = -1/2
bonsoir
- 8 x² + 2 = 0
2 ( - 4 x² + 1 ) = 0
- 4 x² + 1 = 0
- 4 x² = - 1
x² = 1/4
x = √1/4 ou - √ 1/4