x²+1+y²+1=
doprowadz do najprostszej postaci
x² + 1 + y² + 1 = x² + y² + 2
x² +y² +2 .
i tyle. ;D
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x² + 1 + y² + 1 = x² + y² + 2
x² +y² +2 .
i tyle. ;D