Question

Nini

請問中間畫線處

2L+0=2是怎麼來的？😭😭😭

三                             石X) =(fxrl)&r2042

設/(Cx)二(于 +x+2)餘<+12(/Gx x+1)餘外 則,/(x)二 (x+1D(G2 +x+2)
Le fa. Po+t+     時約, 覆此了

Answer 1

Choosen As Best Answer

一把代數一把幾何

x = -1代入f(x)=(x²+x+2)(x+1)q(x) + [(x²+x+2)L+(x+1)]

f(-1)=(2)(0)q(x) + (2L + 0)=2
= 0 + 2L + 0 = 2L = 2
L = 1

Nini

瞭解！謝謝～🙏🏻