bantu yg ini ya teman

misal sisa ax+b
f(x) dibagi (x - 1) sisa 20
f(1) = 1x + b = 20 ........(i)

f(x) dibagi (x +3) sisa 4
f(-3) = -3x+b = 4 .......(ii)

jika dibagi
(x^2 +2x-3)
(x - 1)(x + 3)
maka eliminasi pers (i) dan (ii)
x + b = 20
-3x+b = 4
--------------- -
4x = 16
x = 16/4 = 4

subtitusi ke pers(i)
x + b = 20
4 + b = 20
b = 20 - 4
b = 16

jadi sisanya = ax + b = 4x + 16