а) -3х(2х-1) = -6х²+3х
b) (2a-b)×8b + 8b² = 16ab-8b²+8b² = 16ab
а) -3х*2х-3х(-1)
-6х²+3х
б) 16а*b-8b²+8b²
16a*b
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а) -3х(2х-1) = -6х²+3х
b) (2a-b)×8b + 8b² = 16ab-8b²+8b² = 16ab
а) -3х*2х-3х(-1)
-6х²+3х
б) 16а*b-8b²+8b²
16a*b