2x^5+3x^3+5x^2-2x+10除以x^2+1
问题描述:
2x^5+3x^3+5x^2-2x+10除以x^2+1
答
2x^5+3x^3+5x^2-2x+10
=2x^5+2x^3+x^3+x+5x^2+5-3x+5
=2x^3(x^2+1)+x(x^2+1)+5(x^2+1)-3x+5
=(x^2+1)(2x^3+x+5)-3x+5
商2x^3+x+5
余-3x+5