12x²-3y² (2x+y)²-(x+2y)² 因式分解.最好写完拍下来给我= ̄ω ̄=多12x²-3y²(2x+y)²-(x+2y)²因式分解.最好写完拍下来给我= ̄ω ̄=多谢
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12x²-3y² (2x+y)²-(x+2y)² 因式分解.最好写完拍下来给我= ̄ω ̄=多12x²-3y²(2x+y)²-(x+2y)²因式分解.最好写完拍下来给我= ̄ω ̄=多谢
12x²-3y² (2x+y)²-(x+2y)² 因式分解.最好写完拍下来给我= ̄ω ̄=多
12x²-3y²
(2x+y)²-(x+2y)²
因式分解.最好写完拍下来给我= ̄ω ̄=多谢
12x²-3y² (2x+y)²-(x+2y)² 因式分解.最好写完拍下来给我= ̄ω ̄=多12x²-3y²(2x+y)²-(x+2y)²因式分解.最好写完拍下来给我= ̄ω ̄=多谢