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What is a quadratic equation?

Updated: 11/1/2022
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13y ago

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A quadratic equation is an equation where a quadratic polynomial is equal to zero. It can be written as ax^2+bx+c=0 where a,b,c are the coefficients and x is the variable. A quadratic equation has always two complex solutions for x given by the formula x=-b/2a+sqrt(b^2-4ac)/2a and x=-b/2a-sqrt(b^2-4ac)/2a. Examples of quadratic equations are x^2+x-2=0, 5x^2+6x=0, x^2+1=0 etc.

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14y ago

whats the equation for a quadrat??

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The graph of a quadratic equation is called a?

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How do you know if a equation is a quadratic one?

You know an equation is quadratic by looking at the degree of the highest power in the equation. If it is 2, then it is quadratic. so any equation or polynomial of the form: ax2 +bx+c=0 where a is NOT 0 and a, b and c are known as the quadratic coefficients is a quadratic equation.


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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.


What is a quadratic equation in standard form called?

It is still called a quadratic equation!


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Is y equals 4x a quadratic equation?

No. [ y = 4x2 ] is a quadratic equation.


What is the difference between quadratic equation and quadratic expression?

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What is a quadratic equation when graphed?

The graph (on Cartesian coordinates) of a quadratic equation is a parabola.