已知6x+3=0,求代数式(2x²)³÷(2x²)+(-x²)³÷(-x)²
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已知6x+3=0,求代数式(2x²)³÷(2x²)+(-x²)³÷(-x)²
已知6x+3=0,求代数式(2x²)³÷(2x²)+(-x²)³÷(-x)²
已知6x+3=0,求代数式(2x²)³÷(2x²)+(-x²)³÷(-x)²
首先x=-2,所以原式等于68
由6x+3=0得:x = -3/6 = -1/2
(2x^2)^3/(2x^2) + (-x^2)^3/(-x)^2 = 8x^6/(2x^2) - x^6/x^2 = 4x^4 - x^4 = 3x^4 = 3/16