证明(8-7x-6x²+x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3)的值与x无关
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![证明(8-7x-6x²+x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3)的值与x无关](/uploads/image/z/469480-40-0.jpg?t=%E8%AF%81%E6%98%8E%288-7x-6x%26%23178%3B%2Bx%26%23179%3B%29%2B%EF%BC%88x%26%23179%3B%2B5x%26%23178%3B%2B4x-1%EF%BC%89-%EF%BC%88-x%26%23178%3B-3x%2B2x%26%23179%3B-3%EF%BC%89%E7%9A%84%E5%80%BC%E4%B8%8Ex%E6%97%A0%E5%85%B3)
证明(8-7x-6x²+x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3)的值与x无关
证明(8-7x-6x²+x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3)的值与x无关
证明(8-7x-6x²+x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3)的值与x无关
(8-7x-6x²+x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3)
=8-7x-6x²+x³ + x³+5x²+4x-1 +x²+3x-2x³+3
=8-1 +3
=10
全部化出来呗
最后原式=10,X全部抵消掉了
(8-7x-6x²+x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3)
=8-7x-6x²+x³ + x³+5x²+4x-1 +x²+3x-2x³+3
=8-1 +3
=10