Best Answer

For a quadratic equation in the form: ax² + bx + c = 0

The quadratic formula comes from completing the square of the quadratic equation that gives you a result of x=-b±√b²-4ac divided by 2a.

Using a simple quadratic equation like x² + 2x + 1 = 0

a=1; b=2; c=1

x=-2±√2²-4(1)(1) divided by 2a

x=-2±√4-4 divided by 2a (4 - 4 = 0 and the square root of 0 is 0)

Therefore, x=-2

Q: What are some examples of how to use the quadratic formula?

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As you probably suspect, there are no non-mathematical situations in which you would use the quadratic formula.

Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.

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

Well, if the given quadratic equation cannot be factored, nor completed by the square, try using the quadratic formula.

quadratic formula

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As you probably suspect, there are no non-mathematical situations in which you would use the quadratic formula.

you use the quadratic formula in math when the quadratic equation you are solving cannot be factored.

Quadratic equations can be used in solving problems where the formula is given, falling object problems and problems involving geometric shapes.All types of engineering professions use the quadratic formula since it applies to ordinary differential equations.

Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.

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

Well, if the given quadratic equation cannot be factored, nor completed by the square, try using the quadratic formula.

quadratic formula

I suggest you use the quadratic formula.

Simply learn and use the quadratic equation formula.

By using the quadratic equation formula or by completing the square

All types of engineering professions use the quadratic formula since it applies to ordinary differential equations.

The question is based on the false assumption that the quadratic formula is not used in daily life. Wrong, it IS!