Sagot :
bonsoir,
f (x) = 3 x- 8
g (x) = - x + 4
g (0) = 4
g ( - 3 ) = - ( - 3) = + 4 = 7
f (0) = - 8
3 x - 8 = 0
3 x = 8
x = 8/3
3 x - 8 = - x + 4
3 x + x = 4 + 8
4 x = 12
x = 3
bonsoir,
f (x) = 3 x- 8
g (x) = - x + 4
g (0) = 4
g ( - 3 ) = - ( - 3) = + 4 = 7
f (0) = - 8
3 x - 8 = 0
3 x = 8
x = 8/3
3 x - 8 = - x + 4
3 x + x = 4 + 8
4 x = 12
x = 3