Question

50 poin gann,
Tolong pake cara, klo gak pake cara aku laporin

Answer 1

Sisa  jika dibagi x² - 4  adalah s(x) = ax + b
x² -4 = 0
(x-2)(x+2) = 0
x = 2  atau x = - 2

dibagi ( x - 2) sisa 3 --> s(2) = 3  --> 2a + b = 3
dibagi (x+2) sisa -5 --> s(-2) = - 5 -->-2a + b = - 5
.

2a + b = 3
-2a + b = - 5
kurangkan
4a = 8
a = 2 

b = 3 - 2a
b = 3 - 2(2)
b = 3 -4
b = - 1

s(x) = ax +b
s(x) = 2x - 1