合并同类项:1/5x²-4x+x²/3-6x²+3-x/3-1
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合并同类项:1/5x²-4x+x²/3-6x²+3-x/3-1合并同类项:1/5x²-4x+x²/3-6x²+3-x/3-1合并同类项:1/
合并同类项:1/5x²-4x+x²/3-6x²+3-x/3-1
合并同类项:1/5x²-4x+x²/3-6x²+3-x/3-1
合并同类项:1/5x²-4x+x²/3-6x²+3-x/3-1
1/5x²-4x+x²/3-6x²+3-x/3-1
=-82/15x^2-13/3x+2
1/5x²-4x+x²/3-6x²+3-x/3-1
=x²(1/5+1/3-6)-x(4+1/3)-1
=-5又7/12x²-4又1/3x-1
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=(1/5+1/3-6)x²-(4+1/3)X+3-1
=-82/15x²-13/3X+2