f(x)=x2+3, g(x)=5x+1 tentukan nilai (fog) (1)

langsung aja yy

(fog)(x) = f{g(x)}

= g(x)² + 3

= (5x+1)² + 3

= 25x² + 10x + 1 + 3

= 25x² + 10x + 4

maka
(fog)(1) = 25(1)² + 10(1) + 4

= 25 + 10 + 4

= 39

semoga berguna +_+