Determine the nature  of the roots of the following quadratic equations from their discriminant `:`
Channel: Doubtnut
Date: 29/03/2020

Determine the nature  of the roots of the following quadratic equations from their discriminant `:`  (i) `3y^(2) + 9y+4=0`  (ii) `2x^(2) + 5 sqrt(3)x + 16=0`  (iii) `4x^(2) + 12x + 9=0`  (iv) `m^(2) + sqrt(2) m +1=0` (v) `x^(2) - (1)/(2) x + (1)/( 16) = 0 `  (vi)` x^(2) - 4x -4=0`