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[" If quadratic equation "x^(2)+2(a+2b)x...

[" If quadratic equation "x^(2)+2(a+2b)x+(2a+b-1)=0" has unequal real roots for all "b in R" then the "],[" posible values of a can be equal to "],[[" (A) "5," (B) "-1," (C) "-10," (D) "3]]

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