`y^2+1/y=2` are quadratic equation ?

y^2=5y-10 are quadratic equation ?

Decide which of the following are quadratic equations ? 9y^(2)+5=0

Decide which of the following are quadratic equations : y^(2)+(1)/(y)=2

Decide which of the following are quadratic equations : y^(2)+(1)/(y)=2

Check whether the following are quadratic equations : y(2y + 15) = 2(y^(2) + y + 8)

Decide which of the following are quadratic equations : y^(2)=5y-10

Decide which of the following are quadratic equations : y^(2)=5y-10

Check whether the following are quadratic equations : y(8y + 5) = y^(2) + 3

If the equation y=px+a sqrt(1+p^(2)) is regarded as a quadratic equation in p it will have equal roots if x^(2)+y^(2)=(A)-a^(2)(B)0(C)a^(2)(D) none of these

The graph of y = x^(2) and y= 2 -x interesects at (1,1) and (-2,4) then the roots of required quadratic equations are: