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What is the formula for finding the value of x in the quadratic equation ax2 bx c0?
Wiki User
∙ 11y ago
Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question.
However, assuming your question to find the roots or solutions of ax2 + bx + c = 0,
the answer is
x = [-b ± sqrt(b2 - 4ac)]/2a
b2 - 4ac is called the discriminant.
If the discriminant > 0 then the quadratic equation has two distinct real roots.
If the discriminant = 0 then the quadratic equation has one double root.
If the discriminant < 0 then the quadratic equation has two distinct complex roots that are conjugates of one another.
Wiki User
∙ 11y ago
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How is solving for a specified variable in a formula similar to finding a solution for an equation or inequality?
With a formula, you know the variable's value, and you have to calculate the value of the function of it. With an equation, you know the function's value, and you have to calculate the value of the variable.
What are the possible values of k in the quadratic equation x squared plus 5kx plus 2k equals 0 which has equal real roots?
Using the discriminant formula for a quadratic equation k has a value of 8/25 or maybe 0.
The difference between Quadratic function and quadratic equation?
dunctions are not set equal to a value
What is the solution to 4 equals 2b plus b squared?
To find the solution to this equation, you need to rearrange the terms and solve for the variable. 4 = 2b + b^2 can be rewritten as b^2 + 2b - 4 = 0. You can then solve this quadratic equation by factoring, completing the square, or using the quadratic formula.
What is the value of b2-4ac equal to 0?
It is the value of the discriminant of a quadratic equation.
How is solving for a specified variable in a formula different to finding a solution for an equation or inequality?
With a formula, you know the variable's value, and you have to calculate the value of the function of it. With an equation, you know the function's value, and you have to calculate the value of the variable.
How is solving for a specified variable in a formula similar to finding a solution for an equation or inequality?
With a formula, you know the variable's value, and you have to calculate the value of the function of it. With an equation, you know the function's value, and you have to calculate the value of the variable.
How do you answer 2x² plus 6x minus 8 equals 72?
Using the quadratic equation formula the value of x is -8 or 5
Fill in the blank The of the vertex of a quadratic equation is determined by substituting the value of x from the axis of symmetry into the quadratic equation?
D
The difference between Quadratic function and quadratic equation?
dunctions are not set equal to a value
What are the possible values of k in the quadratic equation x squared plus 5kx plus 2k equals 0 which has equal real roots?
Using the discriminant formula for a quadratic equation k has a value of 8/25 or maybe 0.
In the equation y equals 2x2 - 5x - 18 which is a value of x when y equals 0?
x = 9/2 or x = -2 Solved by using the quadratic equation formula.
What is the solution to 4 equals 2b plus b squared?
To find the solution to this equation, you need to rearrange the terms and solve for the variable. 4 = 2b + b^2 can be rewritten as b^2 + 2b - 4 = 0. You can then solve this quadratic equation by factoring, completing the square, or using the quadratic formula.
What is the value of b2-4ac equal to 0?
It is the value of the discriminant of a quadratic equation.
How do you get the points to graph a quadratic function?
The quadratic equation is y=ax^2 +bx +c. So, you substitute in the values of a, b, and c to the quadratic formula (x= -b +/- \|b^2-4ac all over 2a) in order to find the x value then, substitute in x to the quadratic equation and solve. You will have point (x,y) to graph
How did you find each product of quadratic equations?
You substitute the value of the variable into the quadratic equation and evaluate the expression.
If the discriminant of a quadratic equation is zero and one root of the equation is 5 what is the value of the other root?
It too will have a value of 5
