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The quadratic formula is x=-b±√b^2-4ac divided by 2a.
You can only use this formula to solve the quadratic equation: ax^2+bx+c=0
If you were to punch the quadratic formula in the calculator, you would have to punch in the formula except replace the variables with the numbers from the equation.
Ex. x^2+2x+1=0
a=1; b=2; c=1
In the calculator you would punch in x=-2±√2^2-4(1)(1)
Or simply the equation without x=
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What formula name that gives the solutions for x in a quadratic equation?
This formula is called the quadratic formula.
What is the origin of the quadratic formula?
The quadratic formula is derived by completing the square. That is as much as I can tell you.
What is the graph of a quadratic formula?
In general, quadratic equations have graphs that are parabolas. The quadratic formula tells us how to find the roots of a quadratic equations. If those roots are real, they are the x intercepts of the parabola.
How was the quadratic formula developed?
The quadratic formula can be derived by used a method called completing the square. It's like using algebra to solve for x. The process is explained the related link "Derivation of Quadratic Formula".
What is an equation that can be used in quadratic formula completing the square and factoring?
A quadratic equation.
