0
Solve this quadratic equation using the quadratic formula 2x2 - 2x equals 1?
Wiki User
∙ 14y ago
2x2-2x=1
2x2-2x-1=0
a=2 b=-2 c=-1
x= (-b +- sqr(b2-4ac))/2a
x= (2 +- sqr(4 + 8))/4
x= (2 +- sqr(12))/4
x = 1/2 +- sqr(12)/4
x ~= .5 +- 0.8660
x ~=-0.3660 or x ~= 1.3660
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the quadratic formula for?
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.
The quadratic formula cannot be used to solve an equation if the coefficient of the equation's x2-term is?
The quadratic formula cannot be used to solve an equation if the coefficient of the equation's x2-term is 0.
The quadratic formula can be used to solve an equation only if the highest degree in the equation is?
The quadratic formula can be used to solve an equation only if the highest degree in the equation is 2.
Why do you use square roots to solve quadratic equations?
Because it's part of the quadratic equation formula in finding the roots of a quadratic equation.
Solve this quadratic equation x2 plus 5x plus 3 equals 0?
I suggest you use the quadratic formula. In this case, a = 1, b = 5, c = 3.
What equation could you use to solve o equals 4x2-3x-2?
Quadratic equation formula
Solve this quadratic equation x2 plus 2x - 22 equals 0?
Using the quadratic equation formula:- x = 3.795831523 or x = -5.795831523
What is the quadratic formula for?
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.
The quadratic formula cannot be used to solve an equation if the coefficient of the equation's x2-term is?
The quadratic formula cannot be used to solve an equation if the coefficient of the equation's x2-term is 0.
How do you formulate quadratic equation that can be solve by extracting square roots?
By using the quadratic equation formula
What is the quadratic formula cannot be used to solve an equation if the coefficient of the equation x square term is?
The quadratic formula cannot be used to solve an equation if the coefficient of the equation x square term is what?
The quadratic formula can be used to solve an equation only if the highest degree in the equation is?
The quadratic formula can be used to solve an equation only if the highest degree in the equation is 2.
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.
Why do you use square roots to solve quadratic equations?
Because it's part of the quadratic equation formula in finding the roots of a quadratic equation.
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
Solve the following equation using the quadratic formula. -5X2 equals -7X plus 6?
X= (3/5 , -2)
How do you solve x squared minus ten x plus six equals zero?
It can be solved by using the quadratic equation formula.
