已知|a-2|+(b+1)^2=0,
所以 a-2=0 a=2
b+1=0 b=-1
代数式3a^2b+ab^2-3a^2b+5ab+ab^2-4ab+1/2a^2b是
=ab+2ab^2+1/2a^2b
=-2+4-2
=0
已知|a-2|+(b+1)^2=0,求代数式3a^2b+ab^2-3a^2b+5ab+ab^2-4ab+1/2a^2b是多少
已知|a-2|+(b+1)^2=0,求代数式3a^2b+ab^2-3a^2b+5ab+ab^2-4ab+1/2a^2b是多少
数学人气:986 ℃时间:2020-03-28 15:03:30
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