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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
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What are some real life situations that would use the quadratic formula?
As you probably suspect, there are no non-mathematical situations in which you would use the quadratic formula.
How do you solve x squared minus 10x plus 29 equals zero?
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.
Why do mathmaticians use the quadratic formula?
To find the roots (solutions) of a quadratic equation.
Is it OK to use the quadratic formula if the given quadratic trinomial is not factorable?
Well, if the given quadratic equation cannot be factored, nor completed by the square, try using the quadratic formula.
What formulas do architects use?
quadratic formula
