Разложить на множители: а) 2a^4b^3-2a^3b^4+6a^2b^2 б) x^2-3x-3y-y^2
а) 2a^4b^3-2a^3b^4+6a^2b^2=-2a^2b^2*(ab^2-a^2b-3)
б) x^2-3x-3y-y^2=-(y-x+3)*(y+x)=(x-y-3)*(y+x)
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а) 2a^4b^3-2a^3b^4+6a^2b^2=-2a^2b^2*(ab^2-a^2b-3)
б) x^2-3x-3y-y^2=-(y-x+3)*(y+x)=(x-y-3)*(y+x)