а) 5х(a-b)+3y(a-b)=(a-b)(5x+3y)
б) 2a-2b+ax-bx=2(a-b)+x(a-b)=(a-b)(2+x)
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а) 5х(a-b)+3y(a-b)=(a-b)(5x+3y)
б) 2a-2b+ax-bx=2(a-b)+x(a-b)=(a-b)(2+x)