14. (-9²)
= -81
15. -9²
16. (-7) + 31
= 24
17. 3² x 3³ + 1/2
= 3^5 + 1/2
= 243 + 1/2
= 487/2 atau 243 1/2 atau 243,5
18. 2/7 x 7/24
= 1/12 atau 0,083 atau 12^-1
19. 3/3 : 3 + 1/3
= 1 : 3 + 1/3
= 1/3 + 1/3
= 2/3 atau 0,6
20. 4/5 x 1/2 : 5
= 2/5 × 1/5
= 2/25 atau 0,08
Semoga membantu >0<
~Trex
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14. (-9²)
= -81
15. -9²
= -81
16. (-7) + 31
= 24
17. 3² x 3³ + 1/2
= 3^5 + 1/2
= 243 + 1/2
= 487/2 atau 243 1/2 atau 243,5
18. 2/7 x 7/24
= 1/12 atau 0,083 atau 12^-1
19. 3/3 : 3 + 1/3
= 1 : 3 + 1/3
= 1/3 + 1/3
= 2/3 atau 0,6
20. 4/5 x 1/2 : 5
= 2/5 × 1/5
= 2/25 atau 0,08
Semoga membantu >0<
~Trex