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(x-4) (x-2)
x= 4 atau x= 2
2) x² + 9x + 20
(x+4) (x+5)
x=-4 atau x=-5
3) x²+7x+12
(x+4) (x+3)
x=-4 atau x=-3
4). p² -5p +4
(p-4) (p-1)
p=4 atau p=1
5) a²+8a+12
(a+6) (a+2)
a=-6 atau a=-2
x^2 + 9x + 20 = ( x + 4 ) ( x + 5 ) x1 = 4 x2 = 5
x^2 + 7x + 12 = ( x + 3 ) ( x + 4 ) x1 = 3 x2= 4
p^2 - 5p + 4 = ( p - 4 ) ( p + 1 ) p1= -4 p2 = 1
a^2 + 8a + 12 = ( a + 6 ) ( a + 2 ) ==> a1 = 6 a2 = 2
udah bener itu