5m Zen
X2 y 3 3x 2 1
X2 y 3 3x 2 1 pictures 5
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X2 y
X2 y 3 3x 2 1
x2 y 3 u2714 3x 2 1
x 2(y-3u221A3x)2u003d1
x 2(y-3u27133x)2u003d1
x2 y 3 3x 2 1
