(Q1)Check whether the following equations are quadratic or not

(i)x2-6x-4=0  (ii)x3-6x2+2x-1=0  (iii)7x=2x2  (iv)x2+
1
x2
=2 (v)(2x+1)(3x+1)=6(x-1)(x-2)  (vi)3y2=192

(i)This is quadratic equation x2-6x-4=0

True False

(ii)This is quadratic equation x3-6x2+2x-1=0

True False

(iii)This is quadratic equation 7x=2x2

True False
(iv)This is quadratic equation x2+
1
x2
=2
True False

(v)This is quadratic equation (2x+1)(3x+1)=6(x-1)(x-2)

True False

(vi)This is quadratic equation 3y2=192

True False