For what value of k (4-k)x^2+(2k+4)x+(8k+1)=0 is a perfect square?
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sir, maine cbse se 2012 me exam diya tha jisme meri 2 subject me compartment ayi thi maine exam diya tha bt ek subject me clear hui thi maine re exam ke liye form fill kiya tha bt koi response ...