2x2 - x - 5 = 0
x = [1 +/- sqrt(1 + 40)]/4 = [1 +/- sqrt(41)]/4
= -1.35078 and 1.85078
Using the quadratic equation formula:- x = -0.5447270865 or x = 2.294727086
To solve for x in the equation x2 - 2x - 2 = 0, use the quadratic equation, that is: For 0 = ax2 + bx + c, the roots (values of x) are defined as: x = [-b +/- sqrt(b2 - 4ac) ] / 2a (If that's hard to understand, google "quadratic formula"). It works out to x = 2.73, -0.73.
There are no exclude values of the equation, as given.
If: 2^x2 +5x = k Then: 2x^2 +5x -k = 0 Using and solving the discriminant: k = -3.125 Using and solving the quadratic equation: x = -1.25 Check: 2(-1.25)^2 +5(-1.25) = -3.125
Set up a column for values of x and a column for values of y. List the values of x of how ever many answers you want (let's say between 1 and 5). Put these values into the equation and write down the corresponding value in y. x y 1 7 2 10 3 13 4 16 5 19
It is a quadratic equation and the values of x are: -1/2 and 6
Simply learn and use the quadratic equation formula.
It is finding the values of the variable that make the quadratic equation true.
-0.82 , -4.82
-4,3 are the roots of this equation, so for the values for which the sum of roots is 1 & product is -12
It is used to solve quadratic equations that cannot be factored. Usually you would factor a quadratic equation, identify the critical values and solve, but when you cannot factor you utilize the quadratic equation.
Using the discriminant formula for a quadratic equation k has a value of 8/25 or maybe 0.
You are finding the roots or solutions. These are the values of the variable such that the quadratic equation is true. In graphical form, they are the values of the x-coordinates where the graph intersects the x-axis.
Roots, zeroes, and x values are 3 other names for solutions of a quadratic equation.
This is a quadratic equation requiring the values of x to be found. Rearrange the equation in the form of: -3x2-4x+6 = 0 Use the quadratic equation formula to factorise the equation: (-3x+2.69041576)(x+2.23013857) Therefore the values of x are 0.8968052533 or - 2.230138587 An even more accurate answer can be found by using surds instead of decimals.
You convert the equation to the form: ax2 + bx + c = 0, replace the numeric values (a, b, c) in the quadratic formula, and calculate.
Rearrange the quadratic equation to: x2-6x-9 = 0 and use the quadratic equation formula to find the values of x which are:- x = -1.2426406871 or x = 7.2426406871 When factored: (x+1.2426406871)(x-7.242406871) = 0