.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4
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![.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4](/uploads/image/z/469440-0-0.jpg?t=.%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)
.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4
.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4
.(4x²-1)/(2-4x)除以(4x²+4x+1)/x,其中x=-1/4
(4x²-1)/(2-4x)除以(4x²+4x+1)/x
=(2x-1)(2x+1)/[-2(2x-1)]× [x/(2x+1)²]
=x/[-2(2x+1)]
=-x/(4x+2)
=-(-1/4)/(-1+2)
=1/4