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

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Q: How many real roots exist if the discriminant of the eqation0?
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Related questions

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.


When the discriminant is greater than 0 how many real roots are there?

There will be 2 real roots


How many solutions will a problem have if the discriminant is positive?

Two real roots.


How many solutions will a problem have if the discriminant is zero?

Two equal roots


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

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 roots does 2x2 plus 3x plus 2 have?

If it was expressed as a quadratic equation it would have no roots because the discriminant is less than zero


What is the discriminant and how does it help in knowing how many solutions a quadratic equations will have?

Put the equation into ax²+bx+c=0 form. The discriminant is b²-4ac. If it is negative, there are no real roots. If it is 0, there is one real root. If it is positive, there are 2 real roots. ■


If the discriminant is zero the graph for a quadric function will cross or touch the x axis how many times?

Once and the roots are said to be equal.


How do you find how many x intercepts the parabola has using the discriminant?

If the discriminant is negative, there are 0 interceptsIf the discriminant is zero, there is 1 interceptIf the discriminant is positive, there are 2 intercepts


What does the discriminant tell you?

The discriminant tells you how many solutions there are to an equation The discriminant is b2-4ac For example, two solutions for a equation would mean the discriminant is positive. If it had 1 solution would mean the discriminant is zero If it had no solutions would mean that the discriminant is negative


Use the discriminant to determine how many real number solutions the quadratic equation -4j to the second power plus 3j - 28 equals 0 has?

It has no real roots.