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a = 11 si b +c = 8
1) ab + ac
2) 2a + 3b + 3c


Răspuns :

ab +ac = a * (B+c) = 88
2a+3b+3c = 22 + 24 = 46
1) ab+ac =a x (b+c)= 11x8 = 88
2) 2a + 3b + 3c = 2x11 + 3 x (b+c)= 22+ 3x8=22 + 24=46