x-3/2的绝对值+(y+2)平方=0
x-3/2=0 y+2=0
x=3/2 y=-2
x-2(1/4x-1/3y的平方)+(-3/2x+1/3y的平方)
=x-1/2x+2/3y^2-3/2x+1/3y^2
=-x+y^2
=-3/2+(-2)^2
=-3/2+4
=5/2
已知:x-3/2的绝对值+(y+2)平方=0,求x-2(1/4x-1/3y的平方)+(-3/2x+1/3y的平方)的值
已知:x-3/2的绝对值+(y+2)平方=0,求x-2(1/4x-1/3y的平方)+(-3/2x+1/3y的平方)的值
数学人气:198 ℃时间:2019-08-16 21:26:20
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