
这题怎么解
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= (x+4x) /(x-2) - x /(x+2)
= 5x /(x-2) - x /(x+2)
= (5x²+10x - x²+2x ) / (x²-4)
= (4x²+12x ) / (x²-4)
= 4x (x+3 ) / (x²-4)
= ( 4x ²+ 12x ) / (x²-4)
= 5x /(x-2) - x /(x+2)
= (5x²+10x - x²+2x ) / (x²-4)
= (4x²+12x ) / (x²-4)
= 4x (x+3 ) / (x²-4)
= ( 4x ²+ 12x ) / (x²-4)
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