Respuesta :

Answer:

Step-by-step explanation:

: DStep-by-step explanation:c(d(x))=4(d(x))-2 ... replace every x with d(x) c(d(x))=4(x^2+5x)-2 ... replace the d(x) on the right side with x^2+5x c(d(x))=4*x^2+4*5x-2