Mišrios lygčių sistemos (tiesinė + tiesinė/kvadratinė/trupmeninė)
Pagal 9–10 kl. BP mokomasi spręsti sistemas, kur viena lygtis tiesinė, o kita – tiesinė, kvadratinė arba trupmeninė racionalioji, ir interpretuoti sprendinius.
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