因式分解：9(x-y)^2+12(x^2-y^2)+4(x+y)^2

来源：学生作业帮助网编辑：作业帮时间：2024/11/30 01:08:38

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因式分解：9(x-y)^2+12(x^2-y^2)+4(x+y)^2
因式分解：9(x-y)^2+12(x^2-y^2)+4(x+y)^2

因式分解：9(x-y)^2+12(x^2-y^2)+4(x+y)^2
9(x-y)^2+12(x^2-y^2)+4(x+y)^2
=[3(x-y)]^2+2*3(x-y)*2(x+y)+[2(x+y)]^2
=[3(x-y)+2(x+y)]^2
=(5x-y)^2

9(x-y)^2+12(x^2-y^2)+4(x+y)^2
=9(x-y)^2+12(x+y)(x-y)+4(x+y)^2
=[3(x-y)+2(x+y)]²
=(3x-3y+2x+2y)²
=(5x-y)²

因式分解：-x+9y^2 4-12（x-y）+9(x-y)^2 因式分解 4-12(x-y)+9(x-y)^2因式分解 9(x-y)^2+12(x-y)+4因式分解 4+12(x-y)+9(x-y)^2用因式分解 4（x+y）^2-12(x+y)+9因式分解 9-12(x+y)+4(x+y)^2因式分解因式分解：4+12（x-y)+9(x-y)^2 因式分解：4+12(x+y)+9(x-y)^2=? (x+y)^2因式分解 9y^2-(x+y)^2 因式分解 (x+y)^2-9y^2因式分解 4(x+y)^2-12(x+y)(x-y)+9(+y)^2因式分解, 因式分解x^3+9xy^2-12x^2y 因式分解x(x+y)(x-y)-x(x+y)^2 因式分解：9(x-y)^2+12(x^2-y^2)+4(x+y)^2 因式分解x-x^2-y+y^2 (x+y)^2-(x-y)^2因式分解