Berarti :
1(x/2)² +(-5).(x/2) + k = x²+3x-k
(x²/4) -(5x/2) + k = x²+3x-k
x² - 10x + 4k = x²+3x-k
(x-2) (x-8) = (x-1) (x+4)
x²-10x + 16 = x²+3x-4
4k = 16
k = 4
Jadi k = 4
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Berarti :
1(x/2)² +(-5).(x/2) + k = x²+3x-k
(x²/4) -(5x/2) + k = x²+3x-k
x² - 10x + 4k = x²+3x-k
(x-2) (x-8) = (x-1) (x+4)
x²-10x + 16 = x²+3x-4
4k = 16
k = 4
Jadi k = 4