计算:x^2-(x-5)(x+1),其结果为
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计算:x^2-(x-5)(x+1),其结果为计算:x^2-(x-5)(x+1),其结果为计算:x^2-(x-5)(x+1),其结果为2(x-5)(x+1)+(x+3)^2-(x+3)(x-3)=2(x
计算:x^2-(x-5)(x+1),其结果为
计算:x^2-(x-5)(x+1),其结果为
计算:x^2-(x-5)(x+1),其结果为
2(x-5)(x+1)+(x+3)^2-(x+3)(x-3) =2(x^2-4x-5)+(x+3)(x+3-x+3) =2x^2-8x-10+6x+18 =2x^2-2x+8
4X+5.
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计算:x^2-(x-5)(x+1),其结果为
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