jika f(×)=5×-6,g(×)=x^2+3dan (hogof)(×)=25x^2-60×+43,rumus funsi h(×)=

jawab

fungsi 

(hogof)(x) = 25 x² - 60x + 43

hogof (x) = h  og {f(x)}
= ho g (5x -6)
= h{ (5x-6)² +3}
h ( 25x²  -60 x+ 39)  = 25x²- 60x + 43
h (25x² -60 x + 39)  = (25x²- 60x + 39) + 4
h(x)= x + 4