Ответ Автор - shplena (b-4)^2-(a+3)^2=(b-4-a-3)(b-4+a+3)=(b-a-7)(b+a-1)х^6-x^2*y^4=x²(x^4-y^4)=x²(x²-y²)(x²+y²)=x²(x-y)(x+y)(x²+y²)