Ответ:
1) (b-4)²-(a+3)² = (b-4-(a+3))(b-4+(a+3)) = (b-4-a-3)(b-4+a+3) = (b-7-a)(b-1+a)
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Ответ:
1) (b-4)²-(a+3)² = (b-4-(a+3))(b-4+(a+3)) = (b-4-a-3)(b-4+a+3) = (b-7-a)(b-1+a)