Answer:
b. 2 + √3
Step-by-step explanation:
x² − 4x + 1 = 0
x² − 4x = -1
To complete the square, take half of -4, square it, and add the result to both sides. (-4/2)² = 4.
x² − 4x + 4 = -1 + 4
(x − 2)² = 3
x − 2 = √3
x = 2 + √3
Answer:
x = 2 +√3, 2 -√3.
Step-by-step explanation:
x^2 - 4x + 1 = 0
x^2 - 4x = -1
(x - 2)^2 - 4 = -1
(x - 2)^2 = 3
x - 2 = +/-√3
x = 2 +√3, 2 -√3.
