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Diketahui polinomial . Jika , tentukan nilai .

Pertanyaan

Diketahui polinomial begin mathsize 14px style f left parenthesis x right parenthesis equals x cubed minus 2 x squared minus x plus p end style. Jika undefined, tentukan nilai undefined.
 

  1. ...undefined 

  2. ...space 

Pembahasan Video:

Pembahasan Soal:

Polinomial begin mathsize 14px style f left parenthesis x right parenthesis equals x cubed minus 2 x squared minus x plus p end style dan begin mathsize 14px style f left parenthesis negative 2 right parenthesis equals 2 times f left parenthesis negative 1 right parenthesis end style,
Maka

begin mathsize 12px style table attributes columnalign right center left columnspacing 0px end attributes row cell f left parenthesis negative 2 right parenthesis end cell equals cell 2 times f left parenthesis negative 1 right parenthesis end cell row cell open parentheses negative 2 close parentheses cubed minus 2 times open parentheses negative 2 close parentheses squared minus open parentheses negative 2 close parentheses plus p end cell equals cell 2 times open parentheses left parenthesis negative 1 right parenthesis cubed minus 2 times left parenthesis negative 1 right parenthesis squared minus left parenthesis negative 1 right parenthesis plus p close parentheses end cell row cell negative 8 minus 8 plus 2 plus p end cell equals cell 2 times open parentheses negative 1 minus 2 plus 1 plus p close parentheses end cell row cell p minus 14 end cell equals cell negative 4 plus 2 p end cell row cell p minus 2 p end cell equals cell 14 minus 4 end cell row cell negative p end cell equals 10 row p equals cell negative 10 end cell row blank blank blank end table end style 

Jadi, nilai undefined adalah begin mathsize 14px style negative 10 end style.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 12 April 2021

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