Question

Sendo f:R-R, tal que f(x+1)=3x^2 - 6x. Determine f(0) e f(5)

Answer 1

f(0) = 3 . 0² - 6 . 0

= 0 - 0

f(0) = 0

f(5) = 3 . 5² - 6 . 5

= 3 . 25 - 30

= 75 - 30

f(5) = 45

Answer 2

Sendo f:R-R, tal que f(x+1)=3x^2 - 6x. Determine f(0) e f(5)

F(x+1)= 3x^2 - 6x
F(4+1)= 3.4^2 - 6.4
F(5)= 3.16 - 24
F(5) = 48 - 24
F(5) = 24

F(0)
F(x+1)= 3x^2 - 6.x
F(-1+1)= 3.(-1)^2 - 6.(-1)
F(0)= 3.1 + 6
F(0) = 3+6
F(0)= 9