197k views
2 votes
How can you tell when a quadratic equation has no real solutions?

User Marc Magon
by
7.6k points

2 Answers

5 votes

Answer:

if it doesn't intersect with x-axis

Explanation:

if the eqn is in the form of ax^2 +bx + c,

and if b^2 - 4ac <0 then it has no real solution

User Superdave
by
7.8k points
1 vote

Answer:

if the discriminant is less than 0 it has no real solution.

Explanation:

You can look at the graph and if the parabola does not cross or intersect on the x axis it has no real solution

User MuffinMan
by
8.1k points

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