3x^2+17x-22=0

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Solution for 3x^2+17x-22=0 equation:


Simplifying
3x2 + 17x + -22 = 0

Reorder the terms:
-22 + 17x + 3x2 = 0

Solving
-22 + 17x + 3x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-7.333333333 + 5.666666667x + x2 = 0

Move the constant term to the right:

Add '7.333333333' to each side of the equation.
-7.333333333 + 5.666666667x + 7.333333333 + x2 = 0 + 7.333333333

Reorder the terms:
-7.333333333 + 7.333333333 + 5.666666667x + x2 = 0 + 7.333333333

Combine like terms: -7.333333333 + 7.333333333 = 0.000000000
0.000000000 + 5.666666667x + x2 = 0 + 7.333333333
5.666666667x + x2 = 0 + 7.333333333

Combine like terms: 0 + 7.333333333 = 7.333333333
5.666666667x + x2 = 7.333333333

The x term is 5.666666667x.  Take half its coefficient (2.833333334).
Square it (8.027777782) and add it to both sides.

Add '8.027777782' to each side of the equation.
5.666666667x + 8.027777782 + x2 = 7.333333333 + 8.027777782

Reorder the terms:
8.027777782 + 5.666666667x + x2 = 7.333333333 + 8.027777782

Combine like terms: 7.333333333 + 8.027777782 = 15.361111115
8.027777782 + 5.666666667x + x2 = 15.361111115

Factor a perfect square on the left side:
(x + 2.833333334)(x + 2.833333334) = 15.361111115

Calculate the square root of the right side: 3.919325339

Break this problem into two subproblems by setting 
(x + 2.833333334) equal to 3.919325339 and -3.919325339.

Subproblem 1

x + 2.833333334 = 3.919325339 Simplifying x + 2.833333334 = 3.919325339 Reorder the terms: 2.833333334 + x = 3.919325339 Solving 2.833333334 + x = 3.919325339 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.833333334' to each side of the equation. 2.833333334 + -2.833333334 + x = 3.919325339 + -2.833333334 Combine like terms: 2.833333334 + -2.833333334 = 0.000000000 0.000000000 + x = 3.919325339 + -2.833333334 x = 3.919325339 + -2.833333334 Combine like terms: 3.919325339 + -2.833333334 = 1.085992005 x = 1.085992005 Simplifying x = 1.085992005

Subproblem 2

x + 2.833333334 = -3.919325339 Simplifying x + 2.833333334 = -3.919325339 Reorder the terms: 2.833333334 + x = -3.919325339 Solving 2.833333334 + x = -3.919325339 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.833333334' to each side of the equation. 2.833333334 + -2.833333334 + x = -3.919325339 + -2.833333334 Combine like terms: 2.833333334 + -2.833333334 = 0.000000000 0.000000000 + x = -3.919325339 + -2.833333334 x = -3.919325339 + -2.833333334 Combine like terms: -3.919325339 + -2.833333334 = -6.752658673 x = -6.752658673 Simplifying x = -6.752658673

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.085992005, -6.752658673}

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