Réponse:
1) 5³=5×5×5
2) 8¹² = 8⁴×8⁸ = 8¹⁰×8²
3) 6²+4² = 6×6 + 4×4 = 36+16 = 52
4) 6/(-2⁴) =6/(-2)×(-2)×(-2)×(-2) = 6/16 (C)
5) 2+3×(4+3)² = 2+3×(4+3)×(4+3) = 2+3×7×7 = 2+3×49 =2+147=149