Bonsoir :
D=-2/5×3/-7×-7/2
D=-2/5×3/2
D=-1/15
D=-15
E=2³/5²×3⁵/2⁷×5²/3²
E=2×2×2/5×5 × 3×3×3×3×3/2×2×2×2×2×2×2 × 5×5/3×3
E=1/5×5 × 3×3×3/2×2×2×2 × 5×5
E=1/5²×3³/2⁴×5²
E=1/5²×5²×3³/2⁴
E=1×3³/2⁴
E=3³/2⁴
E=3×3×3/2×2×2×2
E=27/16
E=1×3/2⁴
E=3/2⁴
F=(2/3+1) ÷ (2/3-1)
F=(2/3+3/3) ÷ (2/3-3/3)
F=5/3 ÷ -1/3
F=5/3×3
F=5
Y=4/ 2/5-5/6
Y=4/ 12/30-25/30
Y=4 / -13/10
Y=4×10/-13
Y=40/-13
Y=-40/13
J’espère t'avoir t'aider
