3 ( x + 2 )² = 1/3
( x + 2 )²=1/9
x + 2=±1/3
x=-2±1/3
∴ x1=-7/2 x2=-5/2
x² + 2 x = 9999
x² + 2 x +1=10000
(x+2)²=10000
x=-2±100
∴x1=98 x2=-102
3 ( x + 2 )² = 1/3
( x + 2 )²=1/9
x + 2=±1/3
x=-2±1/3
∴ x1=-7/2 x2=-5/2
x² + 2 x = 9999
x² + 2 x +1=10000
(x+2)²=10000
x=-2±100
∴x1=98 x2=-102