计算:1/5x² - 4x + x²/3 - 6x² + 3- x/3 -1

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计算:1/5x² - 4x + x²/3 - 6x² + 3- x/3 -1

计算:1/5x² - 4x + x²/3 - 6x² + 3- x/3 -1
计算:1/5x² - 4x + x²/3 - 6x² + 3- x/3 -1

计算:1/5x² - 4x + x²/3 - 6x² + 3- x/3 -1
1/5x² - 4x + x²/3 - 6x² + 3- x/3 -1
=-82/15x²-13/3x+2
= -(1/15)*(82x²+65x-30)