разложить на множители x[tex] x^{4} y^{2} + 2 x^{4} + x^{2} y^{2}+2 x^{2} \\ x^{2} -9x+9y- y^{2} \\ 3ax-2-x+6a \\ 4xy-3-2y+6x[/tex]
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1. х²у²(х²+1)+2х²(х²+1)= х²(у²+2) (х²+1)2. (х-у)(х+у) - 9 (х-у)= (х-у)(х+у-9)
3. 3а(х+2) -(х+2)= (х+2)(3а-1)
4.2х(2у+3) -(2у+3)= (2у+3)(2х-1)