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1)ab-8a-bx+8x 3) ax-y+x-ay
2)ax-b+bx-a 4) ax-2bx+ay-2by
1)ab-8a-bx+8x 3) ax-y+x-ay
2)ax-b+bx-a 4) ax-2bx+ay-2by
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1)ab-8a-bx+8x =a(b-8)-х(b-8)=(b-8)(а-х)2)ax-b+bx-a = ax+bx-a-b=x(a+b)-(a+b)=(a+b)(x-1)
3) ax-y+x-ay=ax-ay+x-y=a(x-y)+x-y=(x-y)(a+1)
4)ax-2bx+ay-2by=ax+ay-2bx-2by=a(x+y)-2b(x+y)=(x+y)(a-2b)