Question

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

1+ V21
O-1+ 19
1+2V19)
1+ V79

?

Answer 1

`</p><p>x^2+20=2x \\</p><p>x^2-2x+20=0 \\</p><p>x=(2+\vee-√(-76))/(2)\Longrightarrow\boxed{x\\otin\mathbb{R}}</p><p>`