说明(a^3+3a^2+4a-1)+(a^2-3a+a^3-3)+(8-a-4a^2-2a^3)与a无关谢谢了,
问题描述:
说明(a^3+3a^2+4a-1)+(a^2-3a+a^3-3)+(8-a-4a^2-2a^3)与a无关谢谢了,
答
= a+3a+4a-1+a-3a+a-3+8-a-4a-2a =﹣1-3+8=4∴ 与a无关.
说明(a^3+3a^2+4a-1)+(a^2-3a+a^3-3)+(8-a-4a^2-2a^3)与a无关谢谢了,
= a+3a+4a-1+a-3a+a-3+8-a-4a-2a =﹣1-3+8=4∴ 与a无关.