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Quadratics can two, one or no real roots.

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Q: A quadratic equation has how many real roots?
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What are quadratic equations with real roots?

If the discriminant of the quadratic equation is zero then it will have 2 equal roots. If the discriminant of the quadratic equation is greater than zero then it will have 2 different roots. If the discriminant of the quadratic equation is less than zero then it will have no roots.


The discriminant determines how many what a quadratic equation will have whether they are real or imaginary?

roots


How many real roots exist if the discriminant of the eqation0?

If the discriminant of a quadratic equation is 0 then it has two equal real roots.


How many roots can a quadratic function have?

The answer is two. Despite its name seems to suggest something to do with four, in a quadratic equation the unknown appears at most to the power of two and so is said to be of second degree. The theorem than pertains here is that the number of roots an equation has is equal to its degrees. However, some of the roots can be repeated - an nth degree equation need not have n different roots. Also the roots do not have to be real. However complex roots ( no real) come in pairs so an equation of odd degree must have at least one real root. A quadratic possibly has no real roots.


How can you tell how many solutions a quadratic equation will have without solving it?

A quadratic equation can have a maximum of 2 solutions. If the discriminant (b2-4ac) turns out to be less than 0, the equation will have no real roots. If the Discriminant is equal to 0, it will have equal roots. But, if the discriminant turns out to be more than 0,then the equation will have unequal and real roots.


How many real roots exist if the discriminant of the equation plus 0?

If the discriminant of a quadratic equal is zero then it will have two equal roots.


What happens in the quadratic formula that yields no real solutions?

If the discriminant of b2-4ac in the quadratic equation formula is less than zero then the equation will have no real roots.


What are the roots of quadratic equation?

That depends on the value of its discriminant if its less than zero then it has no real roots.


What is true about a quadratic equation when the discriminant of the equation is positive?

It will then have 2 different roots If the discriminant is zero than it will have have 2 equal roots


What can the discriminant tell you about a quadratic equation?

It can tell you three things about the quadratic equation:- 1. That the equation has 2 equal roots when the discriminant is equal to zero. 2. That the equation has 2 distinctive roots when the discriminant is greater than zero. £. That the equation has no real roots when the discriminant is less than zero.


Why cant the zero product property be used to solve every quadratic equation?

If the discriminant of a quadratic equation is less than zero then it will not have any real roots.


How many real solutions does a quadratic equation have if its discriminant is negative?

The quadratic has no real solutions.