3(b-5)-a(5-b) = 3(b-5)-a(-(b-5)) = 3(b-5)+a(b-5) = (b-5)×(3+a)
Ответ:
(b-5)×(3+a)
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3(b-5)-a(5-b) = 3(b-5)-a(-(b-5)) = 3(b-5)+a(b-5) = (b-5)×(3+a)
Ответ:
(b-5)×(3+a)