Determine whether a given equation is quadratic or not (i) `x^2-6x+4=0` (ii)`x^2+2sqrtx+3=0`

Determine the nature of roots of given quadratic equation ( i x^(2)+x+1=0 (ii) 4x^(2)-4x+1=0

Determine whether the equation represent a circle or not : 3x^2 - 3y^2 + 4x-6y+ 10=0

Determine the discriminant of quadratic equation (i)3x^(2)+2x-1=0(ii)x^(2)-4x+2=0

In each of the following, determine whether the given values are solutions of the given equation or not: x^2-3x+2=0, x=2, x=-1 (ii) x^2+x+1=0, x=0, x=1 (iii) x^2-3sqrt(3)x+6=0, x=sqrt(3), x=-2sqrt(3) (iv) x+1/x=(13)/6, x=5/6, x=4/3

Determine whether the equation represent a circle or not : x^2 + y^2 + 6x - 8y + 50 = 0

Determine the discriminant of the quadratic equation 2x^2 - 7x - 6 = 0

In each of the following determine whether the given values are solution of the given equation or not: x^(2)-x+1=0,x=1,x=-1( ii) x^(2)+sqrt(2)x-4=0,x=sqrt(2),x=-2sqrt(2)

In each of the following determine whether the given values are solution of the given equation or not: 3x^(2)-2x-1=0,x=1( ii) 6x^(2)-x-2=0,x=-1/2,x=2/3

Verify whether 1 is the root of the quadratic equation: x^(2)+3x-4=0

Determine whether the given values are the solution of the given equation ( i ) 3x^(2)-2x-1=0;x=1 (ii) x^(2)-x+1=0;x=1;x=-1