89³ – 90²—————
SOAL 1
___________________________________________
89³ – 90²
= (89.89.89) – (90.90)
= (7.921.89) – (90.90)
= 704.969 – 8.100
= 696.869
___________________________________________
89³ – 90²
- ( 89 × 89 × 89 ) – 90²
- ( 7.921 × 89 ) – 90²
- 704.969 – 90²
- 704.969 – ( 90 × 90 )
- 704.969 – 8.100
- 696.869