(ii) x + x-4=0 find the roots of this quadratic equation ,if they exis

1.	(ii) x + x-4=0 find the roots of this quadratic equation ,if they exist, by the method of completing the square
Answer» x ^2 + x - 4 = 0 By SQUARE completing ===> x^2 + x = 4 ===> x^2 + x + (1/2)^2 = 4 + (1/2)^2 ===>. (x+ (1/2)) ^2. = 4 + (1/4) ===>. x + (1/2). =. √ 4. +. √ (1/4) ===>. x. + (1/2). =. 2. + 1/2 ===>. x. = 2. + (1/2) - (1 /2) ===>. x. =. 2 answer = 2

(ii) x + x-4=0 find the roots of this quadratic equation ,if they exist, by the method of completing the square

Answer»

x ^2 + x - 4 = 0

By SQUARE completing

===> x^2 + x = 4

===> x^2 + x + (1/2)^2 = 4 + (1/2)^2

===>. (x+ (1/2)) ^2. = 4 + (1/4)

===>. x + (1/2). =. √ 4. +. √ (1/4)

===>. x. + (1/2). =. 2. + 1/2

===>. x. = 2. + (1/2) - (1 /2)

===>. x. =. 2

answer = 2

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(ii) x + x-4=0 find the roots of this quadratic equation ,if they exist, by the method of completing the square ​