Aljabar Contoh

${(x^{- 1} + 2 y^{- 1})}^{4}$

Langkah 1

Tulis kembali pernyataannya menggunakan aturan eksponen negatif $b^{- n} = \frac{1}{b^{n}}$ .

${(\frac{1}{x} + 2 y^{- 1})}^{4}$

Langkah 2

Tulis kembali pernyataannya menggunakan aturan eksponen negatif $b^{- n} = \frac{1}{b^{n}}$ .

${(\frac{1}{x} + 2 (\frac{1}{y}))}^{4}$

Langkah 3

Gabungkan $2$ dan $\frac{1}{y}$ .

${(\frac{1}{x} + \frac{2}{y})}^{4}$

Langkah 4

Segitiga Pascal dapat ditampilkan sebagai berikut:

$1$

$1 - 1$

$1 - 2 - 1$

$1 - 3 - 3 - 1$

$1 - 4 - 6 - 4 - 1$

Segitiganya dapat digunakan untuk menghitung koefisien dari perluasan ${(a + b)}^{n}$ dengan mengambil pangkat $n$ dan menambahkan $1$ . Koefisien akan sesuai dengan garis $n + 1$ dari segitiga. Untuk ${(\frac{1}{x} + \frac{2}{y})}^{4}$ $n = 4$ sehingga koefisien dari perluasan akan sesuai dengan garis $5$ .

Langkah 5

Perluasan mengikuti aturan ${(a + b)}^{n} = c_{0} a^{n} b^{0} + c_{1} a^{n - 1} b^{1} + c_{n - 1} a^{1} b^{n - 1} + c_{n} a^{0} b^{n}$ . Nilai-nilai koefisien, dari segitiga, adalah $1 - 4 - 6 - 4 - 1$ .

${(1 a^{4} b^{0} + 4 a^{3} b + 6 a^{2} b^{2} + 4 a b^{3} + 1 a^{0} b^{4})}^{4}$

Langkah 6

Substitusikan nilai-nilai aktual dari $a$ $\frac{1}{x}$ dan $b$ $\frac{2}{y}$ ke dalam pernyataannya.

$1 {(\frac{1}{x})}^{4} {(\frac{2}{y})}^{0} + 4 {(\frac{1}{x})}^{3} {(\frac{2}{y})}^{1} + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 {(\frac{1}{x})}^{1} {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4}$

Langkah 7

Sederhanakan setiap suku.

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Langkah 7.1

Kalikan ${(\frac{1}{x})}^{4}$ dengan $1$ .

${({(\frac{1}{x})}^{4} {(\frac{2}{y})}^{0} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.2

Terapkan kaidah hasil kali ke $\frac{1}{x}$ .

${(\frac{1^{4}}{x^{4}} \cdot {(\frac{2}{y})}^{0} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.3

Satu dipangkat berapa pun sama dengan satu.

${(\frac{1}{x^{4}} \cdot {(\frac{2}{y})}^{0} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.4

Terapkan kaidah hasil kali ke $\frac{2}{y}$ .

${(\frac{1}{x^{4}} \cdot \frac{2^{0}}{y^{0}} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.5

Gabungkan.

${(\frac{1 \cdot 2^{0}}{x^{4} y^{0}} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.6

Kalikan $2^{0}$ dengan $1$ .

${(\frac{2^{0}}{x^{4} y^{0}} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.7

Apa pun yang dinaikkan ke $0$ adalah $1$ .

${(\frac{2^{0}}{x^{4} \cdot 1} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.8

Apa pun yang dinaikkan ke $0$ adalah $1$ .

${(\frac{1}{x^{4} \cdot 1} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.9

Kalikan $x^{4}$ dengan $1$ .

${(\frac{1}{x^{4}} + 4 {(\frac{1}{x})}^{3} (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.10

Terapkan kaidah hasil kali ke $\frac{1}{x}$ .

${(\frac{1}{x^{4}} + 4 (\frac{1^{3}}{x^{3}}) \cdot (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.11

Satu dipangkat berapa pun sama dengan satu.

${(\frac{1}{x^{4}} + 4 (\frac{1}{x^{3}}) \cdot (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.12

Gabungkan $4$ dan $\frac{1}{x^{3}}$ .

${(\frac{1}{x^{4}} + \frac{4}{x^{3}} \cdot (\frac{2}{y}) + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.13

Sederhanakan.

${(\frac{1}{x^{4}} + \frac{4}{x^{3}} \cdot \frac{2}{y} + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.14

Gabungkan.

${(\frac{1}{x^{4}} + \frac{4 \cdot 2}{x^{3} y} + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.15

Kalikan $4$ dengan $2$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + 6 {(\frac{1}{x})}^{2} {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.16

Terapkan kaidah hasil kali ke $\frac{1}{x}$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + 6 (\frac{1^{2}}{x^{2}}) \cdot {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.17

Satu dipangkat berapa pun sama dengan satu.

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + 6 (\frac{1}{x^{2}}) \cdot {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.18

Gabungkan $6$ dan $\frac{1}{x^{2}}$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{6}{x^{2}} \cdot {(\frac{2}{y})}^{2} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.19

Terapkan kaidah hasil kali ke $\frac{2}{y}$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{6}{x^{2}} \cdot \frac{2^{2}}{y^{2}} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.20

Gabungkan.

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{6 \cdot 2^{2}}{x^{2} y^{2}} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.21

Naikkan $2$ menjadi pangkat $2$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{6 \cdot 4}{x^{2} y^{2}} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.22

Kalikan $6$ dengan $4$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + 4 (\frac{1}{x}) {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.23

Sederhanakan.

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + 4 (\frac{1}{x}) \cdot {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.24

Gabungkan $4$ dan $\frac{1}{x}$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{4}{x} \cdot {(\frac{2}{y})}^{3} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.25

Terapkan kaidah hasil kali ke $\frac{2}{y}$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{4}{x} \cdot \frac{2^{3}}{y^{3}} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.26

Gabungkan.

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{4 \cdot 2^{3}}{x y^{3}} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.27

Sederhanakan pembilangnya.

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Langkah 7.27.1

Tulis kembali $4$ sebagai $2^{2}$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{2^{2} \cdot 2^{3}}{x y^{3}} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.27.2

Gunakan kaidah pangkat $a^{m} a^{n} = a^{m + n}$ untuk menggabungkan pangkat.

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{2^{2 + 3}}{x y^{3}} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.27.3

Tambahkan $2$ dan $3$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{2^{5}}{x y^{3}} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.28

Naikkan $2$ menjadi pangkat $5$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + 1 {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.29

Kalikan ${(\frac{1}{x})}^{0}$ dengan $1$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + {(\frac{1}{x})}^{0} {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.30

Terapkan kaidah hasil kali ke $\frac{1}{x}$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + \frac{1^{0}}{x^{0}} \cdot {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.31

Apa pun yang dinaikkan ke $0$ adalah $1$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + \frac{1}{x^{0}} \cdot {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.32

Apa pun yang dinaikkan ke $0$ adalah $1$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + \frac{1}{1} \cdot {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.33

Bagilah $1$ dengan $1$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + 1 {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.34

Kalikan ${(\frac{2}{y})}^{4}$ dengan $1$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + {(\frac{2}{y})}^{4})}^{4}$

Langkah 7.35

Terapkan kaidah hasil kali ke $\frac{2}{y}$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + \frac{2^{4}}{y^{4}})}^{4}$

Langkah 7.36

Naikkan $2$ menjadi pangkat $4$ .

${(\frac{1}{x^{4}} + \frac{8}{x^{3} y} + \frac{24}{x^{2} y^{2}} + \frac{32}{x y^{3}} + \frac{16}{y^{4}})}^{4}$