Answer:
The value of (-6)2 - 4 • 1 • 13 is negative.
Explanation:
To solve a quadratic equation we can solve by factoring, graphing or through the quadratic formula. The formula is as follows:

When the square root value is less than 0, a real solution cannot be found. This means when
. For the equation, a=1, b=-6 and c=13.
We substitute and simplify.

This gives us an imaginary solution because the value of (-6)2 - 4 • 1 • 13 is negative.