Question

哇沙里

求解第11題的（2）🙏🙏

a
= 3
29+ b = 4
(1) Etxu f(-1) = f(-2) = 0, f(1) = 6, f(2)= 48 :$ f(x) • [ 9+b = 1 163-2
(2)Ef f(-1) = f(-2) = f(-3) = 5, F(-4) --7, *(x)• fix-5 = x 1) x + 5) (9x+b)
(1) 3x + 1 x 4
-5
f 1-3) =
1
(4-5)(x+1)
(x->)

Answer 1

once

我覺得
令y=a(x+1)(x+2)(x+3)+5
再把另一個點帶入