[" The quadratic equation "x^(2)-6x+8+la...

[" The quadratic equation "x^(2)-6x+8+lambda(x^(2)-4x+3)=0,lambda in R" has "],[[" (1) real and unequal roots for all "lambda," (2) real roots for "lambda<0" only "],[" (3) real roots for "lambda>0" only "," (4) real and unequal roots for "lambda=0" only "]]

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