faktor x - 1 , brarti habis dibagi x -1, sisanya 0
x - 1 = 0 -->x = 1
Jadi
p(x) = 0
1³ - a(1)² +2(1) - 5 = 0
1 -a + 2 - 5 = 0
-a -2 = 0
-a = 2
a = -2
P(x) = x³ + 2x² + 2x -5
Pake horner :
x³ --> x² --> x --> c
1 1 ---> 2 ---> 2 ---> -5
1 ---> 3 ----> 5
----------------------------- +
1. 3. 5. 0
Hasil bagi
x² + 3x + 5
Faktor yg lain
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faktor x - 1 , brarti habis dibagi x -1, sisanya 0
x - 1 = 0 -->x = 1
Jadi
p(x) = 0
1³ - a(1)² +2(1) - 5 = 0
1 -a + 2 - 5 = 0
-a -2 = 0
-a = 2
a = -2
Jadi
P(x) = x³ + 2x² + 2x -5
Pake horner :
x³ --> x² --> x --> c
1 1 ---> 2 ---> 2 ---> -5
1 ---> 3 ----> 5
----------------------------- +
1. 3. 5. 0
Hasil bagi
x² + 3x + 5
Faktor yg lain
x² + 3x + 5