Check whether the following equations are quadratic or not.
`x^(3) - 6x^(2) + 2x -1 = 0`

Check whether the following equations are quadratic or not. 7x = 2x^(2)

Check whether the following equations are quadratic or not. x^(2) + 1/x^(2) = 2

Check whether the following equations are quadratic or not ? x^(2) - 6x - 5= 0

Check whether the following equations are quadratic or not. x^(2) - 6x - 4 = 0

Check whether the following equations are quadratic or not. 3y^(2) = 192

Check whether the following equations are quadratic or not . (i) x^(2) - 6x - 4 = 0 (ii) x^(3) - 6x^(2) + 2 x - 1 = 0 (iii) 7x = 2x^(2) (iv) x^(2) + (1)/(x^(2)) = 2 (v) (2x + 1 ) (3 x + 1 ) = 6 (x - 1) (x - 2) (vi) 3y^(2) = 192

Check whether the following equations are quadratic or not ? x^(2) + (1)/(x^(2))=2 (x ne 0)

Check whether the equations are quadratic or not? 3y^(2)=192

Check whether the following equations are quadratic or not. (2x + 1) (3x + 1) = 6(x - 1)(x - 2)

Check whether the equations are quadratic or not? x^(3)-6x^(2)+2x-1=0