Упростите:
1)2ab-3ba+5a-a2)xy-y+y-yx
1) a(2b-3b+5-2)=a(3-b)
2) y(x-1+1-x)=0
1)-ba +4a=a(3-b).
2)0.
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Answers & Comments
1) a(2b-3b+5-2)=a(3-b)
2) y(x-1+1-x)=0
1)-ba +4a=a(3-b).
2)0.