Question

Dau coronița!Ex.7!Dau 15 puncte!

Answer 1

a) a(b+c) =11*8=88
b)2*a+3*b+3*c=2*11+3(b+c)=22+3*8=24+22=46
c)10*a+9*b+9*c=10*11+9(b+c)=110+9*8=182
d))a(b+c) +25 =11*8+25=88+25=113
e)a*b+a*c-34=11(b+c)-34=11*8-34=88-34=54
f)7*b+7*c+9*a=7(b+c)+9*11=7*8+99=56+99=155
g)11*b+11*c-6*a =11(b+c)-48=11*8-48=88-48=40
Atât am putut, îmi pare rău, sper ca te-am ajutat

Answer 2

7)
a) a× b + a × c = a×(b+c) = 11 × 8 = 88

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

c) 10×a + 9×b + 9×c = 10×a + 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) + 9×a =
= 7× 8 + 9×11 = 56 + 99 = 155

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

h) 3×a - 3×b - 3×c = 3×a- 3×(b+c) = 3×11 - 3×8 = 33 - 24 = 9

i) 11×b +a×c = 11 ×b+ 11 ×c = 11×(b+c)=
= 11×8 = 88