Question

x square - 4 x + 1 is equal to zero completing square method​

Answer 1

Answer:

(±)underroot3

Step-by-step explanation:

x^2-4x+1=0                              b=-4        (b/2)^2= -4

addind and subtracting -4 0n left side

x^2-4x+4-4+1=0

(x^2-4x+4)-4+1=0

((x-2)^2)-3=0

(x-2)^2=3

taking square root

x-2=± underoot  3

x=2+ underoot 3           or       x=2- underoot3