Réponses

2013-01-31T23:19:26+01:00
2013-01-31T23:19:58+01:00

Bonsoir

 

ax+b >0

ax > -b

x >-b/a

 

f(x) > 0

0.64x+0.512 >0

x > -0.512 / 0.64 

x > -0.8

 

g(x) >0

-1.53x+52.02 >0

x > -52.02 / -1.53 

x > 34