Jawabanmu

2014-07-09T10:59:27+07:00
4+6+8=18
4x6x8=192
jadi 3 bil.itu 4,6,8
semoga bisa membantu
1 1 1
2014-07-09T11:30:49+07:00
U₁ + U₂ + U₃ = 18
a + (a + b) + (a + 2b) = 18
3a + 3b = 18
3 (a+b) = 18
a + b = 6
U₂ = 6
a = 6-b

a(a+b)(a+2b) = 192
6a(a+2b) = 192
a(a+2b) = 32
6-b (6-b + 2b) = 32
(6 - b)(6 + b) = 32
36 - b² = 32
b² = 4
b = +

U₁ = a = 6-b
            = 6 - 2 = 4
U₃ = a+2b = 4+2(2) = 4+4 = 8

Jadi, U₁, U₂, U₃ adalah 4, 6, 8
3 3 3