Bonsoir
1) (3/12)/2= 3/12 × 1/2=6/24=3/12=1/4
Faux
2)1 tonne =1000kg=1 000 000 g=1 ×10^6
52 tonnes =5,2 ×10^6
3) (3x+2)²=3x²+12x+4
9x²+12x+4=3x²+12x+4
9x²=3x²
4)air triangle (4*6)/2=24/2=12cm
Air rectangle =5*6=35
35*2/5=70/5=14
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Bonsoir
1) (3/12)/2= 3/12 × 1/2=6/24=3/12=1/4
Faux
2)1 tonne =1000kg=1 000 000 g=1 ×10^6
52 tonnes =5,2 ×10^6
Faux
3) (3x+2)²=3x²+12x+4
9x²+12x+4=3x²+12x+4
9x²=3x²
Faux
4)air triangle (4*6)/2=24/2=12cm
Air rectangle =5*6=35
35*2/5=70/5=14
Faux