Ответ:
1) 8х²+2ах-3а²+2х²+3ах-3а² = 10х²+5ах-6а²
2) 8х²+2ах-3а²-2х²+3ах-3а² = 6х²+5ах-6а²
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Ответ:
1) 8х²+2ах-3а²+2х²+3ах-3а² = 10х²+5ах-6а²
2) 8х²+2ах-3а²-2х²+3ах-3а² = 6х²+5ах-6а²