5m Zen
K 1 x square
K 1 x square pictures 5
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K 1
K 1 x square
x square kx k 1 2 0
k 4 x square k 1 x 1
(k+1)x square(k+1)x+1u003d0
k 1 x square kx 1 is 3
k 1 x square
k 1 x square kx 1
