Question: how to solve quadratic equations delta?
Answer: Δ=b2−4ac Δ = b 2 − 4 a c is the formula for a quadratic function 's discriminant. If Δ is greater than zero, the polynomial has two real, distinct roots. If Δ is equal to zero, the polynomial has only one real root. If Δ is less than zero, the polynomial has no real roots, only two distinct complex roots.