1.(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x³-3x),其中x=-1/32.2x/(x³+2x²+x)除以(x-1)/(x²+x),其中x=-23.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4
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![1.(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x³-3x),其中x=-1/32.2x/(x³+2x²+x)除以(x-1)/(x²+x),其中x=-23.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4](/uploads/image/z/441288-0-8.jpg?t=1.%28x%26%23178%3B-9%29%2F%28x%26%23178%3B%2B2x%26%23178%3B%2Bx%29%2A%283x%26%23179%3B%2B9x%26%23178%3B%29%2F%28x%26%23179%3B-3x%29%2C%E5%85%B6%E4%B8%ADx%3D-1%2F32.2x%2F%EF%BC%88x%26%23179%3B%2B2x%26%23178%3B%2Bx%EF%BC%89%E9%99%A4%E4%BB%A5%EF%BC%88x-1%EF%BC%89%2F%EF%BC%88x%26%23178%3B%2Bx%EF%BC%89%2C%E5%85%B6%E4%B8%ADx%3D-23.%284x%26%23178%3B-1%29%2F%EF%BC%882-4x%EF%BC%89%E9%99%A4%E4%BB%A5%EF%BC%884x%26%23178%3B%2B4x%2B1%EF%BC%89%2Fx%2C%E5%85%B6%E4%B8%ADx%3D-1%2F4)
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1.(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x³-3x),其中x=-1/32.2x/(x³+2x²+x)除以(x-1)/(x²+x),其中x=-23.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4
1.(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x³-3x),其中x=-1/3
2.2x/(x³+2x²+x)除以(x-1)/(x²+x),其中x=-2
3.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4
1.(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x³-3x),其中x=-1/32.2x/(x³+2x²+x)除以(x-1)/(x²+x),其中x=-23.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4
我们不是天才 这题貌似有点难