Sagot :
F= 3 X 3 + [3 (3 (3 +3 X 3) ) ]
= 3 X 3 + [3 (3 (3 + 9) ) ]
= 3 X 3 + [3 (3 X 12) ]
= 3 X 3 + [3 X 36 ]
= 3 X 3 + 108
= 9 + 108
= 117
= 3 X 3 + [3 (3 (3 + 9) ) ]
= 3 X 3 + [3 (3 X 12) ]
= 3 X 3 + [3 X 36 ]
= 3 X 3 + 108
= 9 + 108
= 117