Answer:

Step-by-step explanation:
Given;
x² - 2x - 1 = 0
Solve by completing the square method;
⇒ take the constant to the right hand side of the equation.
x² - 2x = 1
⇒ take half of coefficient of x = ¹/₂ x -2 = -1
⇒ square half of coefficient of x and add it to the both sides of the equation


⇒ take the square root of both sides;

Therefore, option B is the right solution.
The answer is 18.2
I got the answer by solving it
Answer:
<em>Hope </em><em>this </em><em>helps </em><em>you </em><em>mate </em><em>~♥~</em><em>ฅ(๑*▽*๑)ฅ!!</em><em>ฅ(๑*▽*๑)ฅ!!</em><em>O(≧▽≦)O</em><em>O(≧▽≦)O</em><em>O(≧▽≦)O</em><em>(≧∇≦)</em><em>(≧∇≦)</em><em>(≧∇≦)</em><em>O(≧▽≦)O</em><em>O(≧▽≦)O</em><em>(○゚ε゚○)</em>
The answer to that is 2/5