试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)的值都不变试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 13:44:00
![试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)的值都不变试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³](/uploads/image/z/1978193-65-3.jpg?t=%E8%AF%95%E8%AF%B4%E6%98%8E%EF%BC%9A%E4%B8%8D%E8%AE%BAx%E5%8F%96%E4%BD%95%E5%80%BC%E5%A4%9A%E9%A1%B9%E5%BC%8F%282x%26%23179%3B%2B5x%26%23178%3B%2B4x-3%29-%EF%BC%88-x%26%23178%3B%2B3x%26%23179%3B-3x-1%EF%BC%89%2B%EF%BC%884-7x-6x%26%23178%3B%2Bx%26%23179%3B%EF%BC%89%E7%9A%84%E5%80%BC%E9%83%BD%E4%B8%8D%E5%8F%98%E8%AF%95%E8%AF%B4%E6%98%8E%EF%BC%9A%E4%B8%8D%E8%AE%BAx%E5%8F%96%E4%BD%95%E5%80%BC%E5%A4%9A%E9%A1%B9%E5%BC%8F%282x%26%23179%3B%2B5x%26%23178%3B%2B4x-3%29-%EF%BC%88-x%26%23178%3B%2B3x%26%23179%3B-3x-1%EF%BC%89%2B%EF%BC%884-7x-6x%26%23178%3B%2Bx%26%23179%3B)
试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)的值都不变试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³
试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)的值都不变
试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)的值都不变
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试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)的值都不变试说明:不论x取何值多项式(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³
(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)
=2x³+5x²+4x-3+x²-3x³+3x+14-7x-6x²+x³
=(2-3+1)x³+(5+1-6)x²+(4+3-7)x-3+14
=0+0+0+11
=11
所以不论x取何值值都不变
(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)
=(2x³-3x³+x³)+(5x²-x²-6x²)+(4x+3x-7x)+(-3+1+4)
=0+0+0+2
=2 (与x无关,此多项式为定值2)你的,是对的吗自己...
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(2x³+5x²+4x-3)-(-x²+3x³-3x-1)+(4-7x-6x²+x³)
=(2x³-3x³+x³)+(5x²-x²-6x²)+(4x+3x-7x)+(-3+1+4)
=0+0+0+2
=2 (与x无关,此多项式为定值2)
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