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f(-1) = 8
f(3) = 4
q(-1) = -9
q(3) = 15
h(x) = f(x).q(x)
h(-1) = -a + b
f(-1).q(-1) = -a + b
8(-9) = -a + b
a - b = 72
a = 72 + b
h(3) = 3a + b
f(3).q(3) = 3a + b
4(15) = 3a + b
3a + b = 60
a + b = 60
72 + b + b = 60
2b = -12
b = -6
a - 6 = 60
a = 66
Sisa pembagian h(x) oleh x^{2} -2x-3 adalah 66x - 6
q(-1) = -9
h(-1) = 8.(-9) = -72
⇒f(3) = 4
q(3) = 15
h(3) = 4.15 = 60
⇒h(x) = ax + b
h(-1) = -a + b
-72 = -a + b
h(3) = 3a + b
60 = 3a + b
⇒ -a + b = -72
3a + b = 60
------------------(-)
-4a = -132
a = 33
-33 + b = -72
b = -72 + 33
b = -39
sisa h(x) = 33x - 39