Question

How do I solve this?

Answer 1

I would suggest finding k first.

If
`k^2-3k+5=0\\`,

`k=(-(-3)\pm√((-3)^2-4(1)(5)))/(2(1))` by the quadratic formula.

`k=\emptyset` by the discriminant being negative.

So the expression in terms of k that you need to find cannot be determined.