因式分解18-8X^2+8XY-2Y^2

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因式分解18-8X^2+8XY-2Y^2因式分解18-8X^2+8XY-2Y^2因式分解18-8X^2+8XY-2Y^218-8X^2+8XY-2Y^2=18-2(4X^2-4XY+Y^2)=2[9-

因式分解18-8X^2+8XY-2Y^2
因式分解18-8X^2+8XY-2Y^2

因式分解18-8X^2+8XY-2Y^2
18-8X^2+8XY-2Y^2
=18-2(4X^2-4XY+Y^2)
=2[9-(2X-Y)^2]
=2(3+2X-Y)(3-2X+Y)

18-8X^2+8XY-2Y^2
=2[9-(4x^2-4xy+y^2)]
=2*[9-(2x-y)^2]
=2(3+2x-y)(3-2x+y)