若3a^2-5ab+2b^2=0(b≠0),则(a-2b)/(3a+b)=
已知ab≠0,且实数a、b满足√a(√a+√b)=3√b(2/3√a+4√b),那么(a-5b+√ab)/(a+b+√a
若/a-1/+(b+2)^2=0,A=3a^2-6ab+b^2,B= -a^2-5,求A-B的值.
已知3a*a+ab-2b*b=0(a不等于0,b不等于0),求a/b-b/a-(a*a+b*b)/ab的值.
若a/b=2 则a*a-ab+b*b/a*a+b*b等于?
已知(a+1)^2+|b+5|=0,求3a^2b-[2a^2b-(2ab-a^2b)-4a^2]-
已知a大于0,b大于0,且2√a(√a+2√b)=√b(√a+5√b),求(2a+√ab+3b)÷(3a+√ab-2b)
已知(a+2)²+︳a+b+5︳=0,求3a²b-【2a²b-(2ab-a²b)
已知(a+2)²+丨a+b+5丨=0,求3a²b-[2a²b-(2ab-a²b)
已知(a+2)²+丨a+b-5丨=0,求3a²b-【2a²b-(2ab-a²b)
已知(a+2)²+|a-b+5|=0,求:3a²b-[2a²b-(3ab-a²b
已知(a+3)²+|a+b+5|=0,求3a²b-[2a²b-(2ab-a²b)
3a2+ab-2b2=0,求a/b-b/a-(a2+b2)/ab (a,b不等于0)