Ответ:
9х2 + 1 - 6х = х2 +9 - 6х
9х2 - х2 + 1 -9=0
8х2 - 8=0
8х2 = 8
х2 = 1
х1 = -1
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Ответ:
9х2 + 1 - 6х = х2 +9 - 6х
9х2 - х2 + 1 -9=0
8х2 - 8=0
8х2 = 8
х2 = 1
х1 = -1
х2 = 1