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-- First, write the quadratic formula on the back of your hand:
x = 1/2A [ -B ± sqrt(B2 - 4AC) ]
-- Then, stare at your equation until it dawns on you that
- A = 12
- B = -77
- C = -20
-- Substitute these values of 'A', 'B', and 'C' into the quadratic formula,
evaluate it for the two values of 'x', and the two solutions practically
fall out on the floor and surrender, on their own.
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How do you solve Quadratic functions?
All you do is set the quadratic function to equal to 0. Then you can either factor or use the quadratic formula to solve for your unknown variable.
Y equals b plus x plus x2?
y=b+x+x^2 This is a quadratic equation. The graph is a parabola. The quadratic equation formula or factoring can be used to solve this.
How do you solve this equation to the nearest hundredth x squared -7x -12 equals 0?
Using the quadratic equation formula: x = 8.42 or x = -1.42
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".
How do you use the quadratic formula to solve a quadratic equation?
You convert the equation to the form: ax2 + bx + c = 0, replace the numeric values (a, b, c) in the quadratic formula, and calculate.
