Jawabanmu

2014-08-18T21:32:21+07:00
F o g (x) = f[g(x)]
= f[5x]
= 3(5x) + 10 = 15x + 10

g o f(x) = g[f(x)]
= f[3x +10]
= 5(3x + 10) = 15x + 50

h o f (x) = h[f(x)]
= h[3x + 10]
= 6(3x + 10)² -4
= 6(9x²+60x + 100) - 4
= 72x² + 360x + 596

g o h (x) = g[h(x)]
= g[6x² -4]
= 5(6x² - 4) = 30x² -20

f o g o h (x) = f[g{h(x)}]
= f[g{6x²-4}]
=f[3(6x² - 4) + 10]
= 5[18x² - 12 + 10] = 90x² - 10

semoga membantu,maaf kalo salah. tadi ada soal yg dobel difotonya