计算:(1-x/3-x)²÷(x²-6x+9/9-x²)²•1/(x²-2x+1)要有过程解答.
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计算:(1-x/3-x)²÷(x²-6x+9/9-x²)²•1/(x²-2x+1)要有过程解答.
计算:(1-x/3-x)²÷(x²-6x+9/9-x²)²•1/(x²-2x+1)
要有过程解答.
计算:(1-x/3-x)²÷(x²-6x+9/9-x²)²•1/(x²-2x+1)要有过程解答.
原式=[(x-1)²/(x-3)²]×[-(x+3)(x-3)/(x-3)²]×1/(x-1)²
=-(x-1)²(x+3)(x-3)/[(x-3)²(x-3)²(x-1)²]
=-1/(x+3)(x-3)
=-1/(x²-9)