Ответ:
Формулы: [tex](x+y)^2=x^2+2xy+y^2[/tex] ,
[tex]x^3-y^3=(x-y)(x^2+xy+y^2)[/tex] .
[tex]6)\ \ -8a^5+8a^3-2a=-2a\cdot (4a^4+4a+1)=-2a\cdot (2a^2+1)^2\\\\\\7)\ \ 5a^3-40b^6=5\, (a^3-8b^6)=5\, (a^3-(2b^2)^3)=5\, (a-2b^2)(a^2+2ab^2+4b^4)[/tex]
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Ответ:
Формулы: [tex](x+y)^2=x^2+2xy+y^2[/tex] ,
[tex]x^3-y^3=(x-y)(x^2+xy+y^2)[/tex] .
[tex]6)\ \ -8a^5+8a^3-2a=-2a\cdot (4a^4+4a+1)=-2a\cdot (2a^2+1)^2\\\\\\7)\ \ 5a^3-40b^6=5\, (a^3-8b^6)=5\, (a^3-(2b^2)^3)=5\, (a-2b^2)(a^2+2ab^2+4b^4)[/tex]