Pertanyaan

Jika f ( 2 x + 3 ) = 4 x 2 − 8 x + 5 . Maka tentukanlah fungsi f ( x ) !

Jika $f (2 x + 3) = 4 x^{2} - 8 x + 5$ . Maka tentukanlah fungsi $f (x)$ !

Y. Herlanda

Master Teacher

Mahasiswa/Alumni STKIP PGRI Jombang

Jawaban terverifikasi

Jawaban

fungsi .

fungsi

Error converting from MathML to accessible text.

Pembahasan

Misal: Substitusi Jadi, fungsi .

begin mathsize 14px style f open parentheses 2 x plus 3 close parentheses equals 4 x squared minus 8 x plus 5 end style

Misal:

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 2 x plus 3 end cell equals n row cell 2 x end cell equals cell n minus 3 end cell row x equals cell fraction numerator n minus 3 over denominator 2 end fraction end cell end table end style$

Substitusi

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell f open parentheses n close parentheses end cell equals cell 4 open parentheses fraction numerator n minus 3 over denominator 2 end fraction close parentheses squared minus 8 open parentheses fraction numerator n minus 3 over denominator 2 end fraction close parentheses plus 5 end cell row blank equals cell 4 open parentheses fraction numerator n squared minus 6 n plus 9 over denominator 4 end fraction close parentheses minus 4 open parentheses n minus 3 close parentheses plus 5 end cell row blank equals cell n squared minus 6 n plus 9 minus 4 n plus 12 plus 5 end cell row blank equals cell n squared minus 10 n plus 26 end cell row cell f open parentheses x close parentheses end cell equals cell x squared minus 10 x plus 26 end cell end table end style$

Jadi, fungsi Error converting from MathML to accessible text. .