问题
解答题
合并同类项:3x2-8x+5x3-8x2+2x-5x3+1.
答案
x2-8x+5x3-8x2+2x-5x3+1
=(3x2-8x2)+(5x3-5x3)+(2x-8x)+1
=-5x2-6x+1.
合并同类项:3x2-8x+5x3-8x2+2x-5x3+1.
x2-8x+5x3-8x2+2x-5x3+1
=(3x2-8x2)+(5x3-5x3)+(2x-8x)+1
=-5x2-6x+1.