23x^2+30x+8=0

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Solution for 23x^2+30x+8=0 equation:


Simplifying
23x2 + 30x + 8 = 0

Reorder the terms:
8 + 30x + 23x2 = 0

Solving
8 + 30x + 23x2 = 0

Solving for variable 'x'.

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

Divide each side by '23'.
0.347826087 + 1.304347826x + x2 = 0

Move the constant term to the right:

Add '-0.347826087' to each side of the equation.
0.347826087 + 1.304347826x + -0.347826087 + x2 = 0 + -0.347826087

Reorder the terms:
0.347826087 + -0.347826087 + 1.304347826x + x2 = 0 + -0.347826087

Combine like terms: 0.347826087 + -0.347826087 = 0.000000000
0.000000000 + 1.304347826x + x2 = 0 + -0.347826087
1.304347826x + x2 = 0 + -0.347826087

Combine like terms: 0 + -0.347826087 = -0.347826087
1.304347826x + x2 = -0.347826087

The x term is 1.304347826x.  Take half its coefficient (0.652173913).
Square it (0.4253308128) and add it to both sides.

Add '0.4253308128' to each side of the equation.
1.304347826x + 0.4253308128 + x2 = -0.347826087 + 0.4253308128

Reorder the terms:
0.4253308128 + 1.304347826x + x2 = -0.347826087 + 0.4253308128

Combine like terms: -0.347826087 + 0.4253308128 = 0.0775047258
0.4253308128 + 1.304347826x + x2 = 0.0775047258

Factor a perfect square on the left side:
(x + 0.652173913)(x + 0.652173913) = 0.0775047258

Calculate the square root of the right side: 0.278396706

Break this problem into two subproblems by setting 
(x + 0.652173913) equal to 0.278396706 and -0.278396706.

Subproblem 1

x + 0.652173913 = 0.278396706 Simplifying x + 0.652173913 = 0.278396706 Reorder the terms: 0.652173913 + x = 0.278396706 Solving 0.652173913 + x = 0.278396706 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.652173913' to each side of the equation. 0.652173913 + -0.652173913 + x = 0.278396706 + -0.652173913 Combine like terms: 0.652173913 + -0.652173913 = 0.000000000 0.000000000 + x = 0.278396706 + -0.652173913 x = 0.278396706 + -0.652173913 Combine like terms: 0.278396706 + -0.652173913 = -0.373777207 x = -0.373777207 Simplifying x = -0.373777207

Subproblem 2

x + 0.652173913 = -0.278396706 Simplifying x + 0.652173913 = -0.278396706 Reorder the terms: 0.652173913 + x = -0.278396706 Solving 0.652173913 + x = -0.278396706 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.652173913' to each side of the equation. 0.652173913 + -0.652173913 + x = -0.278396706 + -0.652173913 Combine like terms: 0.652173913 + -0.652173913 = 0.000000000 0.000000000 + x = -0.278396706 + -0.652173913 x = -0.278396706 + -0.652173913 Combine like terms: -0.278396706 + -0.652173913 = -0.930570619 x = -0.930570619 Simplifying x = -0.930570619

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.373777207, -0.930570619}

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