Hitunglah: a. 7 ! x 6 !/3 !+4 !-3 ! b. 4 !/3 ! : 2 !/3 !+5

a. 604818, b. 132

Pembahasan

a. (7 × 6 × 5 × 4 × 3 × 2 × 1) × (6 × 5 × 4 × 3 × 2 × 1) / (3 × 2 × 1) + (4 × 3 × 2 × 1) - (3 × 2 × 1)
= 5040 × 720 / 6 + 24 - 6
= 5040 × 120 + 24 - 6
= 604800 + 24 - 6
= 604818

b. (4 × 3 × 2 × 1) / (3 × 2 × 1) : (2 × 1) / (3 × 2 × 1) + (5 × 4 × 3 × 2 × 1)
= 24 / 6 : 2 / 6 + 120
= 4 : 1/3 + 120
= 4 × 3 + 120
= 12 + 120
= 132