化简(1/2x-4y)-6(1/4x-1/2y)-{2a²b-【3abc-(4ab²-a²b)】}化简求值 (a-2b)-【(a-2b)-5(a-2b)】 其中a=1 b=-(1/2)
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化简(1/2x-4y)-6(1/4x-1/2y)-{2a²b-【3abc-(4ab²-a²b)】}化简求值(a-2b)-【(a-2b)-5(a-2b)】其中a=1b=-(
化简(1/2x-4y)-6(1/4x-1/2y)-{2a²b-【3abc-(4ab²-a²b)】}化简求值 (a-2b)-【(a-2b)-5(a-2b)】 其中a=1 b=-(1/2)
化简(1/2x-4y)-6(1/4x-1/2y)
-{2a²b-【3abc-(4ab²-a²b)】}
化简求值 (a-2b)-【(a-2b)-5(a-2b)】 其中a=1 b=-(1/2)
化简(1/2x-4y)-6(1/4x-1/2y)-{2a²b-【3abc-(4ab²-a²b)】}化简求值 (a-2b)-【(a-2b)-5(a-2b)】 其中a=1 b=-(1/2)
(1/2x-4y)-6(1/4x-1/2y)-{2a²b-【3abc-(4ab²-a²b)】}=1/2x-4y-3/2x+3y-2a²b+3abc-4ab²+a²b=x-y--a²b+3abc-4ab²
(a-2b)-【(a-2b)-5(a-2b)】 =5a-10b=10
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