which of the following is quadratic equation a)(x+1)2=3x b)x2+2=(x+1)2 c)2x+3=0 d)x2+1/x=2
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ठररठलढडलखलरलरलललललखलरडथणददणदणंदणथढथढ
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श्रडरलडलखलभददढदददददददलददददददढदढढढघघघगगखखखखगगगखडडडगडढढ
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