(2 √5 - √10)²
wzorami skróconego mnożenia
(2 √5 - √10)²=20-4√50+10=30-4√50
Chybaa. . ; p
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(2 √5 - √10)²=20-4√50+10=30-4√50
(2 √5 - √10)²=20-4√50+10=30-4√50
Chybaa. . ; p