已知mxy满足:(1)2/3(x-5)^2+5丨m丨=0,(2)-2a^2b^y+1与3a^2b^3是同类项,求代数式
0.375x^2y+5m^2x-{-7/16x^2y+[-1/4xy^2+(-3/16x^2y-3.475xy^2)-6.275xy^}的值....
0.375x^2y+5m^2x-{-7/16x^2y+[-1/4xy^2+(-3/16x^2y-3.475xy^2)-6.275xy^}的值.
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2013-11-03
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已知mxy满足:(1)2/3(x-5)^2+5丨m丨=0,
--->x=5.m=0.
(2)-2a^2b^y+1与3a^2b^3是同类项
-->y+1=3.y=2.
,求代数式
0.375×5^(2×2)+5×0^2×5-{-7/16×5^(2×2)+[-1/4×5×2^2+(-3/16×5^2 ×2-3.475×5×2^2)-6.275×5×2^2}=.
3/8×5^4+0--7/16×5^4+[-5+(-75/16×2
。。。。自己做
--->x=5.m=0.
(2)-2a^2b^y+1与3a^2b^3是同类项
-->y+1=3.y=2.
,求代数式
0.375×5^(2×2)+5×0^2×5-{-7/16×5^(2×2)+[-1/4×5×2^2+(-3/16×5^2 ×2-3.475×5×2^2)-6.275×5×2^2}=.
3/8×5^4+0--7/16×5^4+[-5+(-75/16×2
。。。。自己做
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