Jawabanmu

2014-05-30T20:00:05+07:00
Anggap f(x) = ax² + bx + c
x = -b/2a = 3 atau b = -6a
f(x) = ax² - 6ax + c
f(3) = 9a - 18a + c = -2
-9a + c = -2 ...... (i)
f(0) = c = 16
maka a = 2
f(x) = 2x² - 12x + 16