Răspuns :
d. ab + ac + 25 = a(b + c) + 25 = 11 × 8 + 25 = 88 + 25 = 113
e. ab + ac - 34 = 88 - 34 = 54
f. 7b + 7c + 9a = 7( b + c ) + 9a = 7 × 8 + 9 × 11 = 56 + 99 = 155
g. 11b + 11c - 6a = 11( b + c ) - 6a = 11 × 8 - 6 × 11 = 88 - 66 = 22
h. 3a - 3b - 3c = 3( a - ( b + c )) = 3 × ( 11 - 8 ) = 3 × 3 = 9
i. 11b + ac = 11b + 11c = 11( b + c ) = 11 × 8 = 88