Quadratic Equat...

Solve the quadratic equation by completing the square method: $${x}^{2}+8x-9=0$$

If the discriminant of  $$3 x ^ { 2 } - 2 x + K = 0$$  is zero then  $$\mathrm { K } =$$ _____

Which constant should be added and subtracted to solve the quadratic equation $${ 4x }^{ 2 }-\sqrt { 3x } -5=0$$ by the method of completing the square ? 

Factors of $${ x }^{ 2 }+x\left( a+b \right) +ab$$ are

Quadratic equation among the following is:

Which constant must be added and subtracted to solve the Quadratic equation  $$9 x ^ { 2 } + \dfrac { 3 } { 4 } x - \sqrt { 2 }$$  by the method of completion the square.

For what value of $$c$$, the root of $$ (c-2) x^{2}+2(c-2) x+2=0$$ are not real 

Which constant must be added and subtracted to solve the quadratic equation $$9x^2 + \dfrac{3}{4}x - \sqrt{2} = 0$$ by the method of completing the square ?

If $$(1+m^2)x^2-2(1+3m)x+(1+8m)=0$$. Then numbers of value(s) of m for which this equation has no solution.

Discriminant is ................. for the equation $$5x-6=-\frac{1}{x}$$