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Need help solving this simple quadratic?
x^2-4x+8=0 Need 2 values of X any help appretiated!
1 Answer
- 1 decade agoFavorite Answer
This quadratic has no 'real' solution. In the formula to calculate the solution, you will encounter a square root of a negative number.
This makes the solution a complex number.
The result would be 2+2i and 2-2i.
Unless you already learned about complex numbers, you could just say this equation does not have an answer in R
For a further explanation on complex numbers, which is rather complex, see source.
Source(s): http://en.wikipedia.org/wiki/Complex_number