bagaimana caranya besok dikumpulkan

Tabel 1.2
1. (axb) 1x5 = 5, (bxa) 5x1 = 5, ((axb)xc) (1x5)x4 = 5x4 = 20, bxc 5x4 = 20, (ax(bxc)) 1x(5x4) = 1x20 = 20

Selanjutnya pasti bisa kan?

tabel 1.2
1. 1×5=5. 5×1 = 5 (1×5)×4= 5×4 = 20
5×4 = 20 1 ×(5×4)=1 × 20 = 20