Question

What is one root of this equation?

2x^-4x+9=0

Answer 1

9514 1404 393

Answer:

1 +i√3.5

Explanation:

In vertex form, the equation is ...

2(x² -2x +1) +7 = 0

2(x -1)² +7 = 0

Then the solutions are ...

(x -1)² = -7/2

x = 1 ±i√3.5

One solution is 1+i√3.5.