Jika diketahui ( f o g)(x)=9x2+3x-6 dan g(x)=3x-2.maka tentukan a.fungsi f(x) b.nilai f(10)

A) (Fog)(x) = 9x^2+3x-6
F(g (x)) = 9x^2+3x-6
F (3x-2) = 9x^2+3x-6
F (x) = 9 (3x-2)^2+3 (3x-2)-6
F (x) = 9 (9x^2-12x+4)+9x-6-6
F (x) = 81x^2-108x+36+9x-12
F (x) = 81x^2-99x+24
B) F (10) = 81 (10)^2-99 (10)+24
=81 (100)-990+24
= 8100-990+24
=7134