Respuesta :

The quadratic formula which is expressed as,
                           x = ((-b +/- (b² - 4ac)) / 2a
can only be used if a is not zero. For the equation with a and b as numerical coefficients and c as constant, the degree is 2. Thus, the answer is letter C. 2. 

The highest degree of quadratic equation that can be used to solve an equation is 2.

What is Quadratic Equation?

A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax² + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term.

Here, the solution of quadratic equation

  x = [tex]\frac{-b\±\sqrt{b^2-4ac} }{2a}[/tex]  

it require the value of a, which is the coefficient of x².

Thus, the highest degree of quadratic equation that can be used to solve an equation is 2.

Learn more about Quadratic Equation from:

https://brainly.com/question/2263981

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