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Answered 2015-01-20 03:26:31

I suggest you use the quadratic formula.

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

The quadratic formula can be used to find the solutions of a quadratic equation - not a linear or cubic, or non-polynomial equation. The quadratic formula will always provide the solutions to a quadratic equation - whether the solutions are rational, real or complex numbers.


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.


Why do mathmaticians use the quadratic formula?

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


How do you find quadratic equation with only 2 solutions?

If the discriminant of the quadratic equation is equal or greater than zero it will have 2 solutions if it is less than zero then there are no solutions.


How you find the solution of a quadratic equation by graphing its quadratic equation?

When you graph the quadratic equation, you have three possibilities... 1. The graph touches x-axis once. Then that quadratic equation only has one solution and you find it by finding the x-intercept. 2. The graph touches x-axis twice. Then that quadratic equation has two solutions and you also find it by finding the x-intercept 3. The graph doesn't touch the x-axis at all. Then that quadratic equation has no solutions. If you really want to find the solutions, you'll have to go to imaginary solutions, where the solutions include negative square roots.


Does quadratic equation relate to science?

No, the quadratic equation, is mainly used in math to find solutions to quadratic expressions. It is not related to science in any way.


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 the quadriatic formula used for?

To find the solutions of x in a quadratic equation.


How do you find the number of solutions in a quadratic equation?

Factoring by the AC method, difference of squares, perfect square trinomial. If not factorable by those ways, you can use the quadratic formula. You can also find zeros by synthetic division. If there are not any real solutions, then the solutions are said to be complex, they do not cross the x axis.





How do you factor x2-4x-80 equals 0?

Use the quadratic equation formula to find the solutions to this equation.


How do you find the answer to a quadratic equation from the quadratic formula?

Plug 'a', 'b', and 'c' from the equation into the formula. When you do that, the formula becomes a pair of numbers ... one number when you pick the 'plus' sign, and another number when you pick the 'minus' sign. Those two numbers are the 'solutions' to the quadratic equation you started with.


Write an algorithm to find the root of quadratic equation?

Write an algorithm to find the root of quadratic equation


How do you find the quadratic function of y equals 7x2 plus 2x plus 11?

With difficulty because the discriminant of the quadratic equation is less than zero meaning it has no solutions


Write a program to find roots of a quadratic equation?

That depends what language you use. But basically, you need to write commands to:Tell the user what it is all aboutAsk for the coefficients a, b, and c, for the equation ax2 + bx + c = 0Check whether the discriminant (the expression b2 - 4ac) is positive, negative, or zeroDepending on the result, use the quadratic formula to show the two real solutions, the single real solution, or the two complex solutions. If you are only interested in real solutions, in the latter case state that there are no real solutions.


How did you find each product of quadratic equation?

You substitute the value of the variable into the quadratic equation and evaluate the expression.


Why is the most famous quadratic equation famous?

The quadratic formula is famous mainly because it allows you to find the root of any quadratic polynomial, whether the roots are real or complex. The quadratic formula has widespread applications in different fields of math, as well as physics.


Is quadratic formula can be used in complex number?

Yes, if you have an equation az^2 + bz + c = 0 where a, b, and c are complex numbers, you can use the quadratic formula to find the (usually two) possible complex values for z. However, they will usually not be conjugates of each other.


How do you determine the solutions on a graph for a quadratic equation?

The X-Intercepts are the solutions. If you have an algebra calculator, you can usually find them by going to CALC>Zero>enter the left and right boundaries for each side.


How do you find a quadratic equation with only the solution?

If the solutions are p and q, then the quadratic is (x-p)(x-q) = 0 or x2 - (p+q)x + pq = 0 Hope this is what the question meant!


What determines the nature of the roots of a quadratic equation?

The determinant.The determinant is the part under the square root of the quadratic equation and is:b2-4ac where your quadratic is of the form: ax2+bx+cIf the determinant is less than zero then you have 'no real solutions' (as the square root of a negative number is imaginary.)If the determinant is = 0, then you have one real solution (because you can discount the square root of the quadratic equation)If the determinant is greater than zero you have two real solutions as you have (-b PLUS OR MINUS the square root of the determinant) all over 2aTo find the solutions where they exist you'll need to solve the quadratic formula or use another method.


Which condition must not be met before you can use the quadractic formula to find the soulutions?

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


A condition that must be met before you can use the quadratic formula to find the solutions?

The equation must be written such that the right side is equal to zero. And the resulting equation must be a polynomial of degree 2.


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