" (iii) "3x^(2)+2sqrt(5)*x-5=0

Find the nature of the roots of the following quadratic equations: (i) 2x^(2)-8x+5=0" "(ii)" "3x^(2)-2sqrt(6)x+2=0 (iii) 5x^(2)-4x+1=0" "(iv)" "5x(x-2)+6=0 (v) 12x^(2)-4sqrt(15)x+5=0" "(vi)" "x^(2)-x+2=0

Which of the following are quadratic equations? x-(3)/(x)=x^(2) (ii) 2x^(2)-sqrt(3x)+9=0 (iii) x^(2)-2x-sqrt(x)-5=0

In the following, determine whether the given quadratic equations have real roots and if so, find the roots (i) 3x^2+2sqrt(5)x-5=0 (ii) x^2+5x+5=0

In the following, determine whether the given quadratic equations have real roots and if so, find the roots: (i) 3x^2+2sqrt(5)x-5=0 (ii) x^2-2x+1=0

Using the quadratic formula,solve for x : 3x^(2)+2sqrt(5)x-5=0

In the following,determine whether the given quadratic equations have real roots and if so, find the roots 3x^(2)+2sqrt(5)x-5=0 (ii) x^(2)+5x+5=0

In the following,determine whether the given quadratic equations have real roots and if so, find the roots: 3x^(2)+2sqrt(5)x-5=0 (ii) x^(2)-2x+1=0

ln Delta ABC cosA= -(2)/(3) the equation with roots sin A ,tan A is 1) 6x^(2)+sqrt(5)x-5=0 2) 6x^(2)-sqrt(5)x+5=0 3) 6x^(2)-sqrt(5)x-5=0 4) 6x^(2)+sqrt(5)x+5=0

Find the roots of the following quadratic equations by factorisation method : (i) 2x^(2)+(5)/(3)x-2=0 (ii) (2)/(5)x^(2)-x-(3)/(5)=0 (iii) 3sqrt2x^(2)-5x-sqrt2=0 (iv) 3x^(2)+5sqrt5x-10=0 (v) 21x^(2)-2x+(1)/(21)=0

(6) sqrt(5)x^(2)-2sqrt(2)x-2sqrt(5)=0