Question

f(x)=1/2(x^2-2x+15)

I did the quadratic formula and my answer is 2 plus or minus i square root 8/2.

Could someone check my answer please

Answer 1

0 = x^2 - 2x + 15

x = [2 ± √(4 - 60)] / 2

x = 1 ± i√14