merci de bien vouloir m'aider svp
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
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1a. demander a,b ; x positif si x > -(b/a)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