爱上海后花园

已知实数x,y,z满足(绝对值4x-4y+1)+(1\3根号2y+z)+(z的平方-z+1\4)等于0.求(y+z)×x的平方不好大将就着看看谢谢!有重赏

4x411\\321\\4=04x411\\321\\4=0?4x41gt;=01\\32gt;=02gt;=01\\4=Z12sup2;gt;=04x411\\321\\4=0:4x41=012=02=02Z12sup2;=033=122:=141:4x41=4x11=4x2=04x=2x=12xsup2;=141212sup2;=116...

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