Sagot :
Bonjour,
a) 2w - 15 - 5w + 4 = -3w - 11
b) -5(7x+9) = -35x - 45
6y(-2+7y) = -12y + 42y²
c) si a=2 alors H = 4(2) - 6 + 3(2⁴) - 11(2³) = -38
d) 5 × 5⁴ × (5³)³ = 5¹⁺⁴⁺³ˣ³ = 5¹⁴
Bonjour,
a) 2w - 15 - 5w + 4 = -3w - 11
b) -5(7x+9) = -35x - 45
6y(-2+7y) = -12y + 42y²
c) si a=2 alors H = 4(2) - 6 + 3(2⁴) - 11(2³) = -38
d) 5 × 5⁴ × (5³)³ = 5¹⁺⁴⁺³ˣ³ = 5¹⁴