Réponses

2013-12-09T16:00:00+01:00
6) (a+6)²=a²+12a+36
(t+10)²=t²+20t+100
(5p+4)²=25p²+40p+16
(5x+2)²=25x²+20x+4
(4x+7)²=16x²+56x+49
(1,5b+3,4)²=2,25b²+10,2b+11,56
(0,7+2z)²=0,49+2,8z+4z²
(1,2+y)²=1,44+2,4y+y²

7)(5-t)²=25-10t+t²
(x-8)²=x²-16x+64
(4y-1)²=16y²-8y+1
(3x-7)²=9x²-42x+49
(6-9m)²=36-108m+81m²
(p-2,4)²=p²-4,8p+5,76
(10q-1)²=100q²-20q+1
(1,4x-1)²=1,96x²-2,8x+1