Jawaban:

Pemabahasan :

Bilangan berpangkat adalah ilmu dalam matematika yang mempelajari tentang mengkalikan suatu bilangan secara berkali kali sesuai dengan banyak nilai yang terdapat pada pangkat misalnya saja sebagai contoh :

2² = 2 × 2 = 4

Dalam matematika eksponen terbagi atas 2 yaitu eksponen positif dan negatif misalnya saja contoh soal eksponen negatif :

2-²

= 1/2 × 1/2

= 1/4

Contoh bilangan berpangkat 2:

1² = 1 × 1 = 1

2² = 2 × 2 = 4

3² = 3 × 3 = 9

4² = 4 × 4 = 16

5² = 5 × 5 = 25

6² = 6 × 6 = 36

7² = 7 × 7 = 49

8² = 8 × 8 = 64

9² = 9 × 9 = 81

10² = 10 × 10 = 100

Contoh bilangan berpangkat 3:

1³ = 1 × 1 × 1 = 1

2³ = 2 × 2 × 2 = 8

3³ = 3 × 3 × 3 = 27

4³ = 4 × 4 × 4 = 64

5³ = 5 × 5 × 5 = 125

6³ = 6 × 6 × 6 = 216

7³ = 7 × 7 × 7 = 343

8³ = 8 × 8 × 8 = 512

9³ = 9 × 9 × 9 = 729

10³ = 10 × 10 × 10 = 1000

Contoh bilangan berpangkat 4:

1⁴ = 1 × 1 × 1 × 1 = 1

2⁴ = 2 × 2 × 2 × 2 = 16

3⁴ = 3 × 3 × 3 × 3 = 81

4⁴ = 4 × 4 × 4 × 4 = 256

5⁴ = 5 × 5 × 5 × 5 = 625

6⁴ = 6 × 6 × 6 × 6 = 1.296

7⁴ = 7 × 7 × 7 × 7 = 2.401

8⁴ = 8 × 8 × 8 × 8 = 4.096

9⁴ = 9 × 9 × 9 × 9 = 6.561

10⁴ = 10 × 10 × 10 × 10 = 10.000

Contoh bilangan berpangkat 5:

1⁵ = 1 × 1 × 1 × 1 × 1 = 1

2⁵ = 2 × 2 × 2 × 2 × 2 = 32

3⁵ = 3 × 3 × 3 × 3 × 3 = 243

4⁵ = 4 × 4 × 4 × 4 × 4 = 1.024

5⁵ = 5 × 5 × 5 × 5 × 5 = 3.125

6⁵ = 6 × 6 × 6 × 6 × 6 = 7.776

7⁵ = 7 × 7 × 7 × 7 × 7 = 16.807

8⁵ = 8 × 8 × 8 × 8 × 8 = 32.768

9⁵ = 9 × 9 × 9 × 9 × 9 = 59.049

10⁵ = 10 × 10 × 10 × 10 × 10 = 100.000

→ Contoh soal

7⁴ + 6³

= (7 × 7 × 7 × 7) + (6 × 6 × 6)

= (49 × 7 × 7) + (36 × 6)

= (343 × 7) + 216

= 2.401 + 216

= 2.617

Penyelesaian soal :

6³ + 5² - 5

= (6×6×6) + (5×5) - 5

= (36×6) + 25 - 5

= 216 + 25 - 5

= 236

Pelajari lebih lanjut

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Detail Jawaban

Mapel : Matematika

Kelas : 9

Kode soal : 2

Kode kategorisasi : 9.2.1

Kata kunci : Eksponen,