[pmath] a^2-b^2=(a+b)(a-b) [/pmath]
Katse 2: laen alla http://et.wordpress.org/ wordpress 2.9.2 -> ...???...
katse 3: http://www.sitmo.com/latex
katse 4: http://rogercortesi.com/eqn/index.php -> tegin valemi -> submit querry -> salvestasin ja viitasin URLile
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