5х⁴-3х+7х²-8х⁴+3х-3х²=(5х⁴-8х⁴)+(7х²-3х²)+(3х-3х)=-3х⁴+4х²
Ответ:В
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5х⁴-3х+7х²-8х⁴+3х-3х²=(5х⁴-8х⁴)+(7х²-3х²)+(3х-3х)=-3х⁴+4х²
Ответ:В