1) (х-2)^2-16=2(х+2+8)
2)а^3+1/8у^3=1(а^3+1/8у^3)
3)81у^4-х^4=1(81у^4-х^4)
4)а-а^2+b-b^2=(а-а^2+b-b^2)
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Answers & Comments
1) (х-2)^2-16=2(х+2+8)
2)а^3+1/8у^3=1(а^3+1/8у^3)
3)81у^4-х^4=1(81у^4-х^4)
4)а-а^2+b-b^2=(а-а^2+b-b^2)