Jawabanmu

2014-05-31T22:58:13+07:00
F(x) = ax^4 + bx^2
f '(x) = 4ax^3 + 2bx = 0
x(4ax^2 + 2b) = 0
x = 0 atau x^2 = -2b/4a
Untuk x = 1 maka b = -2a ...(i)
f(x) = ax^4 + bx^2
f(1) = a + b = 1
a - 2a = 1
a = -1 dan b = 2
Jawabannya; a = -1 dan b = 2