Come si trova f (x + h) per la funzione f (x) = x ^ 2 - 2x + 5 ?
Risposta:
vedi spiegazione.
Spiegazione:
To find f(x+h) substitute x = x + h into the function.
f(color(red)(x+h))=(color(red)(x+h))^2-2(color(red)(x+h))+5
now distribute the brackets
f(x+h)=x^2+2hx+h^2-2x-2h+5
which may be expressed as
f(x+h)=x^2+2x(h-1)+h^2-2h+5