Answer:
Explanation:
x² - 4x +2=0
(x² - 4x +4) - 4+2=0
(x - 2)²= 2
x - 2 = √2 or x- 2 = -√2
x=2+√2 or x=2-√2
note : same solution :Magdaloskotova Beginner
(4+2√2)/2 = 2(2+√2)/2 = 2+√2
(4-2√2)/2 = 2(2-√2)/2 = 2-√2
There are two options of x. You have both of them in picture 1.
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