2(x-3)²=x²-9解答,

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2(x-3)²=x²-9解答,2(x-3)²=x²-9解答,2(x-3)²=x²-9解答,

2(x-3)²=x²-9解答,
2(x-3)²=x²-9解答,

2(x-3)²=x²-9解答,