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Kura no saīsinātajām reizināšanas formulām varētu izmantot dotajā piemērā?
(k2 – c4 )2 !
ax2 + bx + c = a(x - x1)(x - x2)
a2 - b2 = (a - b)(a + b)
Nevar pielietot nevienu no parādītajām
(a - b)2 = a2 - 2ab + b2
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