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negative b plus or minus the square root of b minus 4 times ac all over 2 a

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โˆ™ 2008-10-15 02:58:35
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Q: Formula for quadratic equation
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Related questions

What is the quadratic formula for?

The quadratic formula is used to solve the quadratic equation. Many equations in which the variable is squared can be written as a quadratic equation, and then solved with the quadratic formula.


The quadratic formula can be used to solve an equation only if the highest degree in the equation is?

The quadratic formula can be used to solve an equation only if the highest degree in the equation is 2.


Can the answer to a quadratic equation be a decimal?

Yes. You can calculate the two roots of a quadratic equation by using the quadratic formula, and because there are square roots on the quadratic formula, and if the radicand is not a perfect square, so the answer to that equation has decimal.


What is the difference between quadratic formula and quadratic equation?

There are an infinite number of different quadratic equations. The quadratic formula is a single formula that can be used to find the pair of solutions to every quadratic equation.


What is an equation that can be used in quadratic formula completing the square and factoring?

A quadratic equation.


What is equadtratic equation?

A quadratic equation normally has 2 solutions and can be solved by using the quadratic equation formula.


When do you use the Quadratic Formula in math?

you use the quadratic formula in math when the quadratic equation you are solving cannot be factored.


When solving a quadratic equation by factoring what method is used?

Using the quadratic equation formula is a method of solving quadratic equations.


How do you make a table of values for a quadratic equation?

Simply learn and use the quadratic equation formula.


How do you formulate quadratic equation that can be solve by extracting square roots?

By using the quadratic equation formula


What are the methods use in solving quadratic equation?

By using the quadratic equation formula or by completing the square


The quadratic formula cannot be used to solve an equation if the coefficient of the equation's x2-term is?

The quadratic formula cannot be used to solve an equation if the coefficient of the equation's x2-term is 0.


What formula name that gives the solutions for x in a quadratic equation?

This formula is called the quadratic formula.


What is the quadratic formula cannot be used to solve an equation if the coefficient of the equation x square term is?

The quadratic formula cannot be used to solve an equation if the coefficient of the equation x square term is what?


Which the easy way the method of factoring or the solving the quadratic equation?

By knowing how to use the quadratic equation formula.


Why do you use square roots to solve quadratic equations?

Because it's part of the quadratic equation formula in finding the roots of a quadratic equation.


What is 9x2 equals 10x plus 2?

It is a quadratic equation and its solutions can be found by using the quadratic equation formula.


Is it OK to use the quadratic formula if the given quadratic trinomial is not factorable?

Well, if the given quadratic equation cannot be factored, nor completed by the square, try using the quadratic formula.


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.


Why do mathmaticians use the quadratic formula?

To find the roots (solutions) of a quadratic equation.


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

The discriminant


Why is the quadratic formula useful?

The Quadratic Equation is useful because you can't factorevery equation, so you use the quadratic equation. Even though it doesn't seem fun it is still useful.


Why can't an equal 0 in a quadratic equation?

a is the coefficient of the x2 term. If is a = 0, then it is no longer a quadratic - it is just a linear equation, and the quadratic formula will not work to solve it.


How do you use the quadratic formula to solve a quadratic equation?

You convert the equation to the form: ax2 + bx + c = 0, replace the numeric values (a, b, c) in the quadratic formula, and calculate.


Why use quadratic formula?

Using the quadratic formula to solve any quadratic equation is the best way of getting around it because the quadratic formula is "the opposite of b plus or minus the square root of b squared minus 4ac all divided by 2a. This formula only works with trinomials and second degree equaitons. If the equation is a binomial, then put in a placeholer (0) and substitute them into the equation.