Question

1. Solve x2-4x+18=0.

Answer 1

x²-4x+18=0

x= 4 ± √(16-4*1*18) / 2

x=4±√(16-72) /2

x= 4 ± √-56 /2

x = 4±2i√14 / 2

x= 2±√14 * i

Answer 2

The answer is C I just took the test