bt
已知兩個三次函數f(x) = ax², g(x)=bx+cx,
正確的?
(B) 8 (3)+g(-3)=0
(C)h(x) = f(x)+ g(x),圖形會對稱原點
(D)若f(m)-g(-n)=0,則f-m)-g(n)=0 (E)g(x)的圖形與x軸必有3個交點
am ²- (-bn³ - (n) = 0
-am³ - (bh²³ + (h)
已知二次不等式f(x)<0的解為x<3 或x>8,則下列哪些範圍滿足不等式f(㎡-x)
>0?
(A)x<-2 (B)-2<x<-1/(C) 1<x<3 (D)3<x<4 (E)x>4
+24)
(X²-11X+24)
0 = f(x)
A穀 deg f(x) = 4),若f(x)除以(x-1)}餘式為3x+2,除以(x+2)餘式為5x-3,則
BOZ
DELER
(A)f(3) = f(-3)
BAB
b與c異號且c≠0,下列哪些選項是
su cy
8 @X-3) (X-8) -((x²-2x)² - 11/X - 2x²
Aby.
(A)x-1除f(x) 餘式為5 (B)x+2除f(x) 餘式為-13 (C)(x-1)(x+2) 除f(x) 餘式
CD
為 6x-1 (D)(x-1)(x+2)除f(x)餘式為x²+5x+1 (E)(x-1)}(x+2)}除f(x)
餘式為-x²+5x+1+(-2)=-3.=-2a+b
4
f11) = 5.
- 1x² - 4x² + 4x²) - 11X
= atb
+24)
知f(-1)=f(1)=f(2)=0,下列
