If f(x)=8x−5𝑓(𝑥)=8𝑥−5and g(x)=9x2−7x+6𝑔(𝑥)=9𝑥2−7𝑥+6, what is (g−f)(x)(𝑔−𝑓)(𝑥)?
Question
If f(x)=8x−5𝑓(𝑥)=8𝑥−5and g(x)=9x2−7x+6𝑔(𝑥)=9𝑥2−7𝑥+6, what is (g−f)(x)(𝑔−𝑓)(𝑥)?
Solution
Para resolver la función , primero debemos entender que esto significa restar la función de la función .
Dado:
Entonces, se calcula de la siguiente manera:
Sustituyendo las funciones dadas:
Ahora, distribuimos el signo negativo a través de la segunda función:
Luego, combinamos los términos semejantes:
Por lo tanto, la función es:
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