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Tentukan nilai suku banyak berikut untuk nilai x yang diberikan dengan menggunakan metode substitusi  untuk x=−1

Pertanyaan

Tentukan nilai suku banyak berikut untuk nilai begin mathsize 14px style x end style yang diberikan dengan menggunakan metode substitusi

size 14px x to the power of size 14px 6 size 14px minus size 14px 3 size 14px x to the power of size 14px 5 size 14px plus size 14px 2 size 14px x to the power of size 14px 4 size 14px plus size 14px 2 size 14px x to the power of size 14px 3 size 14px plus size 14px 5 size 14px x to the power of size 14px 2 size 14px minus size 14px 7 size 14px x size 14px minus size 14px 5 untuk size 14px x size 14px equals size 14px minus size 14px 1  

E. Lestari

Master Teacher

Mahasiswa/Alumni Universitas Sebelas Maret

Jawaban terverifikasi

Jawaban

diperoleh nilai dari size 14px x to the power of size 14px 6 size 14px minus size 14px 3 size 14px x to the power of size 14px 5 size 14px plus size 14px 2 size 14px x to the power of size 14px 4 size 14px plus size 14px 2 size 14px x to the power of size 14px 3 size 14px plus size 14px 5 size 14px x to the power of size 14px 2 size 14px minus size 14px 7 size 14px x size 14px minus size 14px 5 untuk size 14px x size 14px equals size 14px minus size 14px 1 adalah 11.

Pembahasan

Menggunakan metode substitusi diperoleh 

begin mathsize 11px style x to the power of 6 minus 3 x to the power of 5 plus 2 x to the power of 4 plus 2 x cubed plus 5 x squared minus 7 x minus 5 equals open parentheses negative 1 close parentheses to the power of 6 minus 3 open parentheses negative 1 close parentheses to the power of 5 plus 2 left parenthesis negative 1 right parenthesis to the power of 4 plus 2 open parentheses negative 1 close parentheses cubed plus 5 open parentheses negative 1 close parentheses squared minus 7 open parentheses negative 1 close parentheses minus 5 equals 1 minus 3 open parentheses negative 1 close parentheses plus 2 plus 2 left parenthesis negative 1 right parenthesis plus 5 plus 7 minus 5 equals 1 plus 3 plus 2 minus 2 plus 7 equals 11 end style  

Jadi, diperoleh nilai dari size 14px x to the power of size 14px 6 size 14px minus size 14px 3 size 14px x to the power of size 14px 5 size 14px plus size 14px 2 size 14px x to the power of size 14px 4 size 14px plus size 14px 2 size 14px x to the power of size 14px 3 size 14px plus size 14px 5 size 14px x to the power of size 14px 2 size 14px minus size 14px 7 size 14px x size 14px minus size 14px 5 untuk size 14px x size 14px equals size 14px minus size 14px 1 adalah 11.

51

3.0 (2 rating)

Pertanyaan serupa

Nilai suku banyak 2x3−7x2+11x−4 untuk x=21​ adalah ...

276

4.7

Jawaban terverifikasi

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