Réponse :
Coucou :)
1.(8a²) = 8²*a² = 64a²
2.(-3x)3 = -27x3
3.(-3a²)3 = -27a6
4.(xy²)3 = x3(y²)3 = x3y6
5.(a3)² = a6
6.2-(-3-x) = 2+3+x = 5+x
7.(8+a)-2 = 2*8+2a = 16+2a
8.(x²+3)(x²-3) = (x²)²-3² = x4-3² = x4-9
9.(x²+3)-(x²-3) = x²+3-x²+3 = 6
10.(-4+b) = b-4
Je te souhaite une bonne soirée!
