Pertanyaan

D ik e t ah u i f : R → R , g : R → , g ( x ) = 2 x + 3 d an ( f o g ) ( x ) = 12 x 2 + 32 x + 26 , r u m u s f ( x ) a d a l ah ...

$D ik e t ah u i f : R \to R, g : R \to, g (x) = 2 x + 3 d an (f o g) (x) = 12 x^{2} + 32 x + 26, r u m u s f (x) a d a l ah ...$

D. Kamilia

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

Pembahasan

$left parenthesis f space o space g right parenthesis left parenthesis x right parenthesis equals f left parenthesis 2 x plus 3 right parenthesis equals 12 x squared plus 32 x plus 26 M i s a l k a n colon 2 x plus 3 equals p 2 x equals p minus 3 x equals fraction numerator p minus 3 over denominator 2 end fraction f left parenthesis 2 x plus 3 right parenthesis equals 12 x squared plus 32 x plus 26 f left parenthesis p right parenthesis equals 12. open parentheses fraction numerator p minus 3 over denominator 2 end fraction close parentheses squared plus 32 open parentheses fraction numerator p minus 3 over denominator 2 end fraction close parentheses plus 26 f left parenthesis p right parenthesis equals 12. open parentheses fraction numerator p 2 minus 6 p plus 9 over denominator 4 end fraction close parentheses plus 16 p minus 48 plus 26 f left parenthesis p right parenthesis equals 3 p squared minus 18 p plus 27 plus 16 p minus 48 plus 26 equals 3 p squared minus 2 p plus 5 rightwards arrow f left parenthesis x right parenthesis equals 3 x squared minus 2 x plus 5$