Kuiz 4³ + 7³ - 5² = ... 3² + 2³ + 2² = ...

Kuiz
4³ + 7³ – 5² = …
3² + 2³ + 2² = …

${4}^{3} + {7}^{3} - {5}^{2} = 381$

${4}^{3} = 4 times 4 times 4 \ = 64 \ \ {7}^{3} = 7 times 7 times 7 \ = 343 \ \ {5}^{2} = 5 times 5 \ = 25$

$: : 64 \ 343 \ - - - - - ( + ) \ 406 \ : : 25 \ - - - - - ( - ) \ 381$

${3}^{2} + {2}^{3} + {2}^{2} = 21$

${3}^{2} = 3 times 3 \ = 9 \ \ {2}^{3} = 2 times 2 times 2 \ = 8 \ \ {2}^{2} = 2 times 2 \ = 4$

$9 \ 8 \ - - - - - ( + ) \ 17 \ 4 \ - - - - - ( + ) \ 21$

1. 382

2. 21

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1. 4³ + 7³ – 5² = …

= ((4 × 4) × 4) + ((7 × 7) × 7) – (5 × 5)

= (16 × 4) + (49 × 7) – 25

= (64 + 343) – 25

= 407 – 25

= 382

2. 3² + 2³ + 2² = …

= (3 × 3) + ((2 × 2) × 2) + (2 × 2)

= 9 + (4 × 2) + 4

= (9 + 8) + 4

= 17 + 4

= 21

1. Hasil dari 4³ + 7³ – 5² adalah 382

2. Hasil dari 3² + 2³ + 2² adalah 21

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