Q. 23³ – 5!! × ( 8 – 3 ) “Harapan ku seperti sepasang sandal :-::”
23³ – 5!! × ( 8 – 3 )
= ( 23 × 23 × 23 ) – 5!! × ( 8 – 3 )
= ( 529 × 23 ) – 5!! × ( 8 – 3 )
= 12.167 – 5!! × ( 8 – 3 )
= 12.167 – 5!! × 5
= 12.167 – ( 5 × 3 × 1 ) × 5
= 12.167 – ( 15 × 1 ) × 5
= 12.167 – 15 × 5
= 12.167 – 75
= 12.092
Penjelasan dengan langkah-langkah:
KABATAKU FAKTORIALLL
23³ – 5!! × ( 8 – 3)
= (20 + 3)³ – 5×3×1 × 5
= (20³ + 3(20²)(3) + 3(20)(3²) + 3³) – 15 × 5
= (8.000 + 3.600 + 540 + 27) – 75
= 11.600 + 540 – 48
= 11.600 + 492