Ответ:
(6a-7)²-(4a-2)²=(6a-7+4a-2)(6a--7-4a+2) = (10a-9)(2a-5)
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Ответ:
(6a-7)²-(4a-2)²=(6a-7+4a-2)(6a--7-4a+2) = (10a-9)(2a-5)