Practice problem
When does a quadratic equation of the form x2+c=0x^2+c=0x2+c=0 have no real solutions?
Exactly when (if and only if) ccc is positive
Exactly when (if and only if) ccc is negative
Exactly when (if and only if) ccc is zero
Exactly when (if and only if) c>−14c>\frac{-1}{4}c>4−1
Type a concept, like “slope” or “photosynthesis”.