(1+ 2b²/a²-b²)÷(1+ 2b/a-b),其中3a+2b=0化简求值,{1+(2b²/a²-b²)}÷{1+(2b/a-b)},其中3a+2b=0
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(1+ 2b²/a²-b²)÷(1+ 2b/a-b),其中3a+2b=0化简求值,{1+(2b²/a²-b²)}÷{1+(2b/a-b)},其中3a+2b=0
(1+ 2b²/a²-b²)÷(1+ 2b/a-b),其中3a+2b=0
化简求值,{1+(2b²/a²-b²)}÷{1+(2b/a-b)},其中3a+2b=0
(1+ 2b²/a²-b²)÷(1+ 2b/a-b),其中3a+2b=0化简求值,{1+(2b²/a²-b²)}÷{1+(2b/a-b)},其中3a+2b=0
3a+2b=0
∴b=-3a/2
原式=(a²-b²+2b²)/(a²-b²)÷(a-b+2b)/(a-b)
=(a²+b²)/(a+b)(a-b) ×(a-b)/(a+b)
=(a²+b²)/(a+b)²
=(a²+9a²/4)/(a-3a/2)²
=13
化成a/b的形式,后面a/b是知道的。或者将后面的a与b的关系带入消去一个字母