Question

Please help mee doar ex: 7

Answer 1

7. a = 11
b+c = 8

a) a•b+a•c = a(b+c) = 11•8 = 88.

b) 2•a+3•b+3•c = 2a+ 3(b+c) = 2•11+3•8 = 22+24 = 46.

c) 10•a+9•b+9•c = 10a+9(b+c) = 10•11+9•8 = 110+72 = 182.

d) a•b+a•c+25 = a(b+c)+25 = 11•8+25 = 88+25 = 113.

e) a•b+a•c-34 = a(b+c)-34 = 11•8-34 = 88-34 = 54.

f) 7•b+7•c+9•a = 7(b+c)+9a = 7•8+9•11 = 56+99 = 155.

g) 11•b+11•c-6•a = 11(b+c)-6a = 11•8-6•11 = 88-66 = 22.

h) 3•a-3•b-3•c = 3(a-b+c) = 3(11-8) = 3•3 = 9.

i) 11•b+a•c = 11b+11c = 11(b+c) = 11•8 = 88.



Sper că te-am ajutat :)