不锈钢自吸泵图片:初二代数!!急!!!!!help!!!!!!!!!!谢!!!!!!~~~~~~~~~~~~

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[2+(根号2)/2-(根号2)]^2+[2-(根号2)/2+(根号2)]^2

答案+过程!!~ 谢!!!!!!!!!!!!!!!~~~~~~~~~~~~~~

(2+√2/2-√2)^2+(2-√2/2+√2)^2=2*2*2+(√2/2-√2)^2*2=8+1/2*2=9

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