Ответ:
а²-16а+64+2(3а-а²-24+8а)+а²-6а+9=а²-16а+64+6а-2а²-48+16а+а²-6а+9=
-10а+64-48+10а+9=25 ч т д
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Ответ:
а²-16а+64+2(3а-а²-24+8а)+а²-6а+9=а²-16а+64+6а-2а²-48+16а+а²-6а+9=
-10а+64-48+10а+9=25 ч т д