2a^2-2分之1(ab+a^2)-8ab化简

问题描述:

2a^2-2分之1(ab+a^2)-8ab化简
x+(2x-1)-(3分之x+3)

2a^2-1/2(ab+a^2)-8ab
=2a^2-1/2ab+1/2a^2-8ab
=5/2a^2-17/2ab
x+(2x-1)-(x/3+3)
=x+2x-1-x/3-3
=3x-x/3-4
=8/3x-4