Roboguru

Diketahui, Tentukan: b.

Pertanyaan

Diketahui,

begin mathsize 14px style A equals 2 b plus 4 a squared end style

begin mathsize 14px style B equals a squared minus 6 b end style

begin mathsize 14px style C equals b minus 6 a squared end style

Tentukan:

b.   begin mathsize 14px style 3 A minus 2 left parenthesis B minus C right parenthesis end style

  1. ... 

  2. ... 

Pembahasan Soal:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 3 A minus 2 left parenthesis B minus C right parenthesis end cell equals cell 3 left parenthesis 2 b plus 4 a squared right parenthesis minus 2 left parenthesis a squared minus 6 b minus left parenthesis b minus 6 a squared right parenthesis right parenthesis end cell row blank equals cell 6 b plus 12 a squared minus 2 left parenthesis a squared minus 6 b minus b plus 6 a squared right parenthesis end cell row blank equals cell 6 b plus 12 a squared minus 2 a squared plus 12 b plus 2 b minus 12 a squared end cell row blank equals cell 12 a squared minus 2 a squared minus 12 a squared plus 6 b plus 12 b plus 2 b end cell row blank equals cell negative 2 a squared plus 20 b end cell end table end style   

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 20 Mei 2021

Ruangguru

RUANGGURU HQ

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

Coba GRATIS Aplikasi Ruangguru

Produk Ruangguru

Produk Lainnya

Hubungi Kami

Ikuti Kami

©2021 Ruangguru. All Rights Reserved