Ответ:
а) (a+2)*(b-c)
б) (10x-3) * (10x+3)
в)
Объяснение:
a) ab - ac + 2b - 2c = a(b-c) +2b-2c = a(b-c) +2(b-c) = (a+2)*(b-c)
б) 100 -9 = (10x-3) * (10x+3)
в) 2+4mn+2 =
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Ответ:
а) (a+2)*(b-c)
б) (10x-3) * (10x+3)
в)
Объяснение:
a) ab - ac + 2b - 2c = a(b-c) +2b-2c = a(b-c) +2(b-c) = (a+2)*(b-c)
б) 100
-9 = (10x-3) * (10x+3)
в) 2
+4mn+2
= 