" (ii) "[2x^(2)+x-4=0],[2x^(2)+x+4=0]

Find the roots of following quadratic equations by using quadratic formula, if they exist. (i) 2x^(2)+x-4=0 (ii) 2x^(2)+x+4=0 (iii) 2x^(2)+5sqrt3x+6=0 (iv) sqrt3x^(2)+11x+6sqrt3=0

Determine the nature of the roots of the following quadratic equations from their discriminant : (i) 2x^(2) - 3 x -4 =0 (ii) x^(2) - 2 x+ ( 9 )/(4) =0 .

4x^2-7x-2=0

Find the roots of the quadratic equations by applying the quadratic formula.(i) 2x^(2)-7x+3=0 (ii) 2x^(2)+x-4=0 (iii) 4x^(2)+4sqrt(3)x+3=0( iv )2x^(2)+x+4=0

Write the discriminant of the following quadratic equations: x^(2)-4x+2=0 (ii) 3x^(2)+2x-1=0 (iii) x^(2)-4x+a=0

Examine the nature of the roots of the equations (i) 2x^(2)+2x+3=0 (ii) 2x^(2)-7x+3=0 (iii) x^(2)_5x-2=0 (iv) 4x^(2)-4x+1=0

Find the roots of the quadratic equations by applying the quadratic formula. (i) 2x^2 -7x+3 =0 (ii) 2x^2+x-4 =0 (iii) 4x^2+4sqrt3x+3=0 (iv) 2x^2+x+4 = 0

Determine the nature of the roots of the following quadratic equations: 2x^(2)+x-1=0x^(2)-4x+4=0x^(2)+x+1=04x^(2)-4x+1=02x^(2)+5x+5=0