两道初二下册数学题 1、(8/4X²-1) +( 2x+3/1-2x)=1 2( x-2/x-1) / (3/x-1-x-1)
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两道初二下册数学题 1、(8/4X²-1) +( 2x+3/1-2x)=1 2( x-2/x-1) / (3/x-1-x-1)
两道初二下册数学题 1、(8/4X²-1) +( 2x+3/1-2x)=1 2( x-2/x-1) / (3/x-1-x-1)
两道初二下册数学题 1、(8/4X²-1) +( 2x+3/1-2x)=1 2( x-2/x-1) / (3/x-1-x-1)
8/(2x+1)(2x-1)-(2x+3)/(2x-1)=12(x-2)/(x-1)*(x-1)/(3-x²+1)
8/(2x+1)(2x-1)-(4x²+8x+3)/(2x-1)(2x+1)=-12/(x+2)
两边乘以(2x+1)(2x-1)(x+2)
(-4x²-8x+5)(x+2)=-12(4x²-1)
4x³-32x²+11x+2=0