试说明代数式﹣﹙3x²y+10x³﹚+3x³+6x³y+3x²y﹣﹙6x³y-7x³﹚的值与x,y
问题描述:
试说明代数式﹣﹙3x²y+10x³﹚+3x³+6x³y+3x²y﹣﹙6x³y-7x³﹚的值与x,y
(³=^3)
答
﹣﹙3x²y+10x³﹚+3x³+6x³y+3x²y﹣﹙6x³y-7x³﹚=﹣3x²y-10x³+3x³+6x³y+3x²y﹣6x³y+7x³=0代数式﹣﹙3x²y+10x³﹚+3x³+6x³...