|a-b+3|+(2a+b)^2=0=>a-b=-3,2a+b=0 =>a=-1,b=22a^3b(2ab+1)-a^2(-2ab)^2=2a^3b(2ab-1)-2a^4b^2=2a^3b=2*(-1)*2=-4
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![|a-b+3|+(2a+b)^2=0=>a-b=-3,2a+b=0 =>a=-1,b=22a^3b(2ab+1)-a^2(-2ab)^2=2a^3b(2ab-1)-2a^4b^2=2a^3b=2*(-1)*2=-4](/uploads/image/z/12435400-64-0.jpg?t=%7Ca-b%2B3%7C%2B%282a%2Bb%29%5E2%3D0%3D%3Ea-b%3D-3%2C2a%2Bb%3D0+%3D%3Ea%3D-1%2Cb%3D22a%5E3b%282ab%2B1%29-a%5E2%28-2ab%29%5E2%3D2a%5E3b%282ab-1%29-2a%5E4b%5E2%3D2a%5E3b%3D2%2A%28-1%29%2A2%3D-4)
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|a-b+3|+(2a+b)^2=0=>a-b=-3,2a+b=0 =>a=-1,b=22a^3b(2ab+1)-a^2(-2ab)^2=2a^3b(2ab-1)-2a^4b^2=2a^3b=2*(-1)*2=-4
|a-b+3|+(2a+b)^2=0
=>a-b=-3,2a+b=0 =>a=-1,b=2
2a^3b(2ab+1)-a^2(-2ab)^2=2a^3b(2ab-1)-2a^4b^2
=2a^3b=2*(-1)*2=-4
|a-b+3|+(2a+b)^2=0=>a-b=-3,2a+b=0 =>a=-1,b=22a^3b(2ab+1)-a^2(-2ab)^2=2a^3b(2ab-1)-2a^4b^2=2a^3b=2*(-1)*2=-4
输入法换成智能ABC 然后输入a再输入回车左边的符号两次再按两下回车最后翻到最后一页打出了删多余的就行了 买一张名字更改卡 A