(1-(0.2+0.125)x2)÷0.125=2.8 要3天
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(1-(0.2+0.125)x2)÷0.125=2.8要3天(1-(0.2+0.125)x2)÷0.125=2.8要3天(1-(0.2+0.125)x2)÷0.125=2.8要3天(1-(0.2+0.
(1-(0.2+0.125)x2)÷0.125=2.8 要3天
(1-(0.2+0.125)x2)÷0.125=2.8 要3天
(1-(0.2+0.125)x2)÷0.125=2.8 要3天
(1-(0.2+0.125)x2)÷0.125=2.8 要3天
若 x2-3x+1=0,求(2x2×x3-5x2×x2+2 x3-8x2 )÷(x2+1 )的值
X2/X1(X1+X2)+X3/(X1+X2)(X1+X2+X3)+.Xn/(x1+x2+...Xn-1)(X1+X2...+Xn)
分式计算:2x/x2-x-2÷(1-x/x+1)-x2+2x/x2-4
分式计算:2x/x2-x-2÷(1-x/x+1)-x2+2x/x2-4
解方程:x2+ax-2a2=0.(a为已知常数)或(X+1)÷X2—2X2÷(X+1)=1解方程一:x2+ax-2a2=0.(a为已知常数)解方程二:(X+1)÷X2—2X2÷(X+1)=1
(1-(0.2+0.125)x2)÷0.125=2.8 要3天
六年级简便计算168.1 4.3x2-0.4168.1÷( 4.3x2-0.4)
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