Ответ:4х³-18-(4х+6)(х²+7х-3)=-34x²-30х
Объяснение:
4х³-18-(4х+6)(х²+7х-3)=4х³-18-(4х³+28х²-12х+6х²+42х-18)=4х³-18-(4х³+34х²+30х-18)=4х³-18-4х³-34х²-30х+18=-34x²-30х
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Ответ:4х³-18-(4х+6)(х²+7х-3)=-34x²-30х
Объяснение:
4х³-18-(4х+6)(х²+7х-3)=4х³-18-(4х³+28х²-12х+6х²+42х-18)=4х³-18-(4х³+34х²+30х-18)=4х³-18-4х³-34х²-30х+18=-34x²-30х