Find the roots of the following quadratic equations, if they exist, by the method of completing the square: `2x^2 +x-4=0`

Find the roots of the following quadratic equations,if they exist,by the method of completing the square:(ii) 2x^2+x-4=0

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: 4x^2+x-3=0

Find the roots of the following quadratic equations,if they exist,by the method of completing the square:(iv) 2x^2+x+4=0

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: x^2+4x+1=0

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: 5x^(2) - 7x - 6 = 0

Find the roots of the following quadratic equations , if they exists , by the method of completing the square. 2x^(2) + x- 4 =0

Find the roots of the following quadratic equations, (if they exist, by the method of completing the square) :- x^2-4x-8=0 .

Find the roots of the following quadratic equations if they exist, by the method of completing the square : 2x^2-7x+3=0 .

Find the roots of the following quadratic equations, (if they exist, by the method of completing the square) :- 2x^2-3x-1 =0.

Find the roots of the following quadratic equations, if they exist, by the method of completing the square : 2x^(2)-7x+3=0