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the square root of b squared minus 4 times a times c

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โˆ™ 2010-03-12 04:53:57
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Q: What is discriminant in quadratic equation?
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How many discriminant did this quadratic equation have -4j2 3j-280?

A quadratic equation has one discriminant.


If the discriminant of a quadratic equation is -4 how many solutions does the equation have?

If the discriminant of a quadratic equation is less then 0 then it will have no real solutions.


How do you find the discriminant?

b2-4ac is the discriminant of a quadratic equation.


If the discriminant of an equation is 0?

If the discriminant of a quadratic equation is zero then it has two identical roots.


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.


What is the definition of quadratic discriminant?

The discriminant of the quadratic equation: y = ax^2 + bx + c is b^2 - 4ac


What part of the a quadratic formula tells you when the quadratic equation can be solved by factoring?

The discriminant


What statements must be true of an equation before you can use the quadratic formula to find the solutions?

That the discriminant of the quadratic equation must be greater or equal to zero for it to have solutions. If the discriminant is less than zero then the quadratic equation will have no solutions.


When the discriminant is perfect square the answer to a quadratic equation will be?

Rational.


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.


If the discriminant of an equation is zero then?

The term "discriminant" is usually used for quadratic equations. If the discriminant is zero, then the equation has exactly one solution.


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

The quadratic has no real solutions.


What is the equation for finding the discriminant?

The discriminant of the quadratic polynomial ax2 + bx + c is b2 - 4ac.


Why the discriminant of a quadratic is useful in algebra?

Because the square root of the discriminant is a component of the roots of the equation.


When will an equation have no solution?

If the discriminant of a quadratic equation is less than zero then it has no solutions.


What do you find when you determine the discriminant?

Whether or not that there is a solution to a quadratic equation,


When can you say that the discriminant don't have root?

If the discriminant of a quadratic equation is less than zero then it will have no real roots


If the discriminant of a quadratic equation equals zero what is true of the equation?

It has one real solution.


How many discriminants does the quadratic equation -4j2 plus 3j - 28 equal 0 have?

Any quadratic equation has one discriminant.


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.


When can you say that he discriminant don't have roots?

If the discriminant b2-4ac of a quadratic equation is less than zero then it will have no roots


What type of equation is b2-4ac?

6


If the discriminant is zero?

The two roots of the quadratic equation coalesce into one.


How can you have one solution in something that is quadratic?

b^2 - 4ac, the discriminant will tell you that a quadratic equation may have one real solution( discriminant = 0 ) , two real solutions( discriminant > 0 ), or no real solutions( discriminant < 0 ).


In the quadratic equation ax2 plus bx plus c 0 if b2 - 4ac?

If you mean b^2 -4ac then it is the discriminant of a quadratic equation. If the discriminant equals 0 then the equation has 2 equal roots. If the discriminant is greater than 0 then the equation has 2 different roots. If the discriminant is less than 0 then it has no real roots.

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