Iklan

Pertanyaan

Tentukan hasil perkalian akar-akar bilangan berikut! e. ( 2 4 a 5 ​ + b ​ ) ( 2 4 a 5 ​ − b ​ )

Tentukan hasil perkalian akar-akar bilangan berikut!

e.  

8 dari 10 siswa nilainya naik

dengan paket belajar pilihan

Habis dalam

01

:

08

:

15

:

52

Klaim

Iklan

E. Lestari

Master Teacher

Mahasiswa/Alumni Universitas Sebelas Maret

Jawaban terverifikasi

Jawaban

hasil dari adalah .

hasil dari open parentheses 2 fourth root of a to the power of 5 end root plus square root of b close parentheses open parentheses 2 fourth root of a to the power of 5 end root minus square root of b close parentheses adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank 4 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank a end table squared table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of a end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell negative b end cell end table.

Pembahasan

Ingat kembali rumus berikut. Dari rumus di atas, diperoleh perhitungan sebagai berikut. Jadi, hasil dari adalah .

Ingat kembali rumus berikut.

  • open parentheses a to the power of m close parentheses to the power of n equals a to the power of m cross times n end exponent 
  • n-th root of a to the power of m end root equals a to the power of m over n end exponent 
  • a to the power of m cross times a to the power of n equals a to the power of m plus n end exponent 
  • square root of a squared cross times b end root equals a square root of b
  • open parentheses square root of a minus square root of b close parentheses open parentheses square root of a plus square root of b close parentheses equals open parentheses square root of a close parentheses squared minus open parentheses square root of b close parentheses squared 

Dari rumus di atas, diperoleh perhitungan sebagai berikut.

table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses 2 fourth root of a to the power of 5 end root plus square root of b close parentheses open parentheses 2 fourth root of a to the power of 5 end root minus square root of b close parentheses end cell equals cell 2 squared open parentheses fourth root of a to the power of 5 end root close parentheses squared minus open parentheses square root of b close parentheses squared end cell row blank equals cell 4 open parentheses a to the power of 5 over 4 end exponent close parentheses squared minus b end cell row blank equals cell 4 open parentheses a to the power of 5 over 4 cross times 2 end exponent close parentheses minus b end cell row blank equals cell 4 open parentheses a to the power of 5 over 2 end exponent close parentheses minus b end cell row blank equals cell 4 open parentheses a to the power of 2 1 half end exponent close parentheses minus b end cell row blank equals cell 4 open parentheses a to the power of 2 plus 1 half end exponent close parentheses minus b end cell row blank equals cell 4 open parentheses a squared cross times a to the power of 1 half end exponent close parentheses minus b end cell row blank equals cell 4 a squared square root of a minus b end cell end table 

Jadi, hasil dari open parentheses 2 fourth root of a to the power of 5 end root plus square root of b close parentheses open parentheses 2 fourth root of a to the power of 5 end root minus square root of b close parentheses adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank 4 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank a end table squared table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of a end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell negative b end cell end table.

Perdalam pemahamanmu bersama Master Teacher
di sesi Live Teaching, GRATIS!

11

ratuaqila

harus verivikasi wa

Iklan

Pertanyaan serupa

Tentukan hasil operasi bilanganberikut! d. 3 ​ ( 2 6 ​ − 25 ​ ) e. ( 6 ​ + 8 ​ ) ( 6 ​ − 3 ​ ) f. ( 2 3 ​ − 6 ​ ) ( 8 ​ − 2 ​ ) g. ( 3 5 ​ − 6 ​ ) ( 3 5 ​ + 6 ​ )

7

4.3

Jawaban terverifikasi

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Roboguru

Coba GRATIS Aplikasi Ruangguru

Download di Google PlayDownload di AppstoreDownload di App Gallery

Produk Ruangguru

Hubungi Kami

Ruangguru WhatsApp

+62 815-7441-0000

Email info@ruangguru.com

[email protected]

Contact 02140008000

02140008000

Ikuti Kami

©2024 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia