Hi
x² + 2x + 1 = (x+1)²
sorry I don't think you understood because I wrote in wrong
x^2 +2x - 4 = 0
x^2 +2x = 4
then I add 1/2 of the coefficient of x and square it, then add the results to both sides of the equation. Therefore I have (2/2)squared which gives me (4/4) which is 1
x^2 + 2x + 1 = 4 + 1
x^2 + 2x + 1 = 5
x^2 + 2x + 1 - 5 = 5-5
x^2 + 2x - 4 = 0
Now I am stuck if I have done everything else right
This is where you stopped before and this is where you should have stopped! Do you understand why "add 1/2 of the coefficient of x and square it"? The whole purpose is to make one side a "perfect square". That was why running gag said " ".
Can you solve ?
These last two lines just undo what you did in the first two lines!x^2 + 2x + 1 - 5 = 5-5
x^2 + 2x - 4 = 0
Now I am stuck if I have done everything else right