Réponses

2014-02-24T14:14:35+01:00
A-b=-3/5
si b=7/3
a-7/3=-3/5
<=> a=7/3-3/5
<=> a=35/15-9/15
<=>a=26/15

(4x+5)(6x+3)+(4x+5)(4x+2)=(4x+5)(6x+3+4x+2)=(4x+5)(10x+5)=5(4x+5)(2x+1)