Question

dada função f(x)=x²+3x-4 determine:
c) f(x+h)
d) f(2x+3h)

Answer 1

Resposta:

$\sf f(x)=x^2+3x-4$

c)

$\sf f(x+h)=(x+h)^2+3(x+h)-4$

$\red{\sf f(x+h)=x^2+2hx+h^2+3x+3h-4}$

d)

$\sf f(2x+3h)=(2x+3h)^2+3(2x+3h)-4$

$\red{\sf f(2x+3h)=4x^2+12hx+9h^2+6x+9h-4}$