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orde 0 : 1
orde 1 : 1 1
orde 2 : 1 2 1
orde 3 : 1 3 3 1
orde 4 : 1 4 6 4 1
penjabaran :
suku tengah berada pada : 6x²
shg : 6x² = 24
x² = 4
x = 2