4mx2的知识精选

多项式8x2﹣3x+5与3x3﹣4mx2﹣5x+7多项式相加后,不含二次项,则m的值是(  )A.2     ...
问题详情:多项式8x2﹣3x+5与3x3﹣4mx2﹣5x+7多项式相加后,不含二次项,则m的值是()A.2                          B.4                          C.﹣2            ...
热门标签