5m Zen
X 2 y 2 12x 8y 3 0
X 2 y 2 12x 8y 3 0 pictures 5
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X 2 y
X 2 y 2 12x 8y 3 0
x 2 y 2 12x 8y 3 0
x 2 y 2 12x 8y 3 0 in standard form
