Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

O 1 + 213

0-17 19:

O 1+2 19

O 1 + 19;

Step-by-step explanation:

x² + 20 = 2x

x² - 2x + 20 = 0

x = [ - b ± √ (b² - 4ac) ] / 2a

x = [ - (-2) ± √ ((-2) ² - 4 (1) (20)) ] / 2 (1)

x = [ 2 ± √ (4 - 80) ] / 2

x = [ 2 ± √ (-76) ] / 2

x = [ 2 ± 2i√19 ] / 2

x = 1 ± i√19