(x-3)^2-(x-1)(x-2)-7(x+1)简便运算（12a^4b^5-4a^8b^3-6a^2b^3)除以2a^2b^3_数学解答

(x-3)^2-(x-1)(x-2)-7(x+1)简便运算（12a^4b^5-4a^8b^3-6a^2b^3)除以2a^2b^3

人气：131 ℃　时间：2020-04-08 13:02:08

解答

=x²-6x+9-(x²-3x+2)-7x+7
=-10x+14
（12a^4b^5-4a^8b^3-6a^2b^3)除以2a^2b^3
=12a^4b^5除以2a^2b^3-4a^8b^3除以2a^2b^3-6a^2b^3除以2a^2b^3
=6a²b²-2a^6-3