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L =
L = (x+4) (x-2)
p x l = (x+4) (x-2)
dari persamaan diatas, bisa kita anggap
p = (x+4)
l = (x-2)
maka,
K = 2(p+l)
K = 2{(x+4)+(x-2)}
K = 2(2x+2)
K = 4x+4
jadi jawabannya B... :)
L =
L = (x+4) (x-2)
p x l = (x+4) (x-2)
dari persamaan diatas, bisa kita anggap
p = (x+4)
l = (x-2)
maka,
K = 2(p+l)
K = 2{(x+4)+(x-2)}
K = 2(2x+2)
K = 4x+4