已知m,x,y满足条件:
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解决时间 2021-03-16 22:03
- 提问者网友：
- 2021-03-16 02:31
已知m,x,y满足条件:
最佳答案
- 五星知识达人网友：人類模型
- 2021-03-16 03:33
2/3(x-5)²+5|m|=0得x=5,m=0
-2a²b^(y+1)与3a²b³是同类项得y+1=3,y=2
0.375x²y+5m²x-{-7/16x²y+[+1/4xy²+（-3/16x²y-3.475xy²）]-6.275}=3/8x²y-(-7/16x²y-3/16x²y+0.25xy²-3.475xy²-6.275)=x²y+3.225xy²+6.275=50+3.225*20+6.275=120.775
-2a²b^(y+1)与3a²b³是同类项得y+1=3,y=2
0.375x²y+5m²x-{-7/16x²y+[+1/4xy²+（-3/16x²y-3.475xy²）]-6.275}=3/8x²y-(-7/16x²y-3/16x²y+0.25xy²-3.475xy²-6.275)=x²y+3.225xy²+6.275=50+3.225*20+6.275=120.775
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