Question

Trivial question
If x=+-k
Can I say k=x^2?

Answer 1

That makes no sense.

How can k = x and k = x^2 unless both x and k are one (1)?

Answer 2

if\[x=\pm k\]\[k=x^{2}\]
This

Answer 3

are you squaring both sides of the equation?

Answer 4

yeah. Can i do that?