Ответ:
а) 4х²+(3х²+2) = 7х²+2
б) -3а²+2-(5а²-3а+2) = -3а²+2-5а²+3а-2 = -8а²+3а
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Б) -8а^2+3а
Ответ:
а) 4х²+(3х²+2) = 7х²+2
б) -3а²+2-(5а²-3а+2) = -3а²+2-5а²+3а-2 = -8а²+3а