00:01
When you solve this equation x squared minus 2x plus 1 equals 0, using the quadrarch formula, which you can see.
00:07
So on our equation, our a is our number in front of our x squared, so our a is 1, or b is negative 2, our c is 1.
00:15
And you're going to plug that into this equation.
00:20
So you have the opposite of b, which would be positive 2, plus or minus square root of b squared.
00:26
Make sure you put in parentheses, minus 4 times your a times your c, all of the opposite.
00:33
Over 2 times your a.
00:35
So we're going to do the math that's underneath the radical.
00:38
So if you notice i'll write 2 plus or minus a big square root all over, do math on the bottom 2 times 1 is 2...
