Répondre :
A= 3x3+[3(3(3+3x3))]
= 3x3+[3(3(3+9))]
=3x3+[3(3x12)]
=3x3+[3x36]
=3x3+108
=9 +108
= 117
A= 117
= 3x3+[3(3(3+9))]
=3x3+[3(3x12)]
=3x3+[3x36]
=3x3+108
=9 +108
= 117
A= 117
caculer l'expression numérique en criavnt le détail :
A= 3x3+[3(3(3+3x3))]