Sagot :
bonjour
f (x) = 3 x + 2
f ( 2) = 6 + 2 = 8
f ( 4) = 12 + 2 = 14
f ( 8) = 24 + 2 = 26
antécédents de 5
3 x + 2 = 5
3 x = 5 - 2
3 x = 3
x = 1
de 10
3 x + 2 = 10
3 x = 10 - 2
3 x = 8
x = 8/3
D = ensemble des R
bonjour
f (x) = 3 x + 2
f ( 2) = 6 + 2 = 8
f ( 4) = 12 + 2 = 14
f ( 8) = 24 + 2 = 26
antécédents de 5
3 x + 2 = 5
3 x = 5 - 2
3 x = 3
x = 1
de 10
3 x + 2 = 10
3 x = 10 - 2
3 x = 8
x = 8/3
D = ensemble des R