Page 34 - Buku Paket Kelas 8 Matematika Semester 1

1 = 12
3 = 2􏰀1 + 1
1
5 = 12 + 22
5 = 2􏰀2 + 1
3 ×1 = 1 × 3
3 × S1 = (1) × (2 × 1 + 1)
3 × S1 =
3 ×5 = 5 × 3
3 × S2 = (1 + 2) × (2 × 2 × 1) 3 × S2 = (3) × (2 × 2 + 1)
3 × S 2 = 12 􏰀 􏰁 􏰀 􏰂 􏰀 􏰃 􏰁 􏰀 􏰄 􏰅 􏰄 􏰆
3=1+ 2
14 = 12 + 22 + 32
3 × 14 = 6 × 7
3×S3 =(1+2+3)×(2×3×1) 3×S3 =(6)×(2×3+1)
3×S3= 12 􏰀􏰂􏰀􏰇 􏰀􏰃􏰁􏰀􏰂􏰅􏰄􏰆
28
Kelas VIII SMP/MTs
Semester I
6 = 1+ 2+ 3
30 = 12 + 22 + 32 + 42
10 = 1 + 2 + 3 + 4
9=2􏰀4+1
3 × 30 = 10 × 9
3 × S4 = (1 + 2 + 3 + 4) × (2 × 4 × 1)
3 × S4 = (10) × (2 × 4 + 1)
3 × S 4 = 12 􏰀 􏰇 􏰀 􏰈 􏰀 􏰃 􏰁 􏰀 􏰇 􏰅 􏰄 􏰆
7 = 2􏰀3 + 1