20x^2+29x-6=0

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Solution for 20x^2+29x-6=0 equation:


Simplifying
20x2 + 29x + -6 = 0

Reorder the terms:
-6 + 29x + 20x2 = 0

Solving
-6 + 29x + 20x2 = 0

Solving for variable 'x'.

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

Divide each side by '20'.
-0.3 + 1.45x + x2 = 0

Move the constant term to the right:

Add '0.3' to each side of the equation.
-0.3 + 1.45x + 0.3 + x2 = 0 + 0.3

Reorder the terms:
-0.3 + 0.3 + 1.45x + x2 = 0 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + 1.45x + x2 = 0 + 0.3
1.45x + x2 = 0 + 0.3

Combine like terms: 0 + 0.3 = 0.3
1.45x + x2 = 0.3

The x term is 1.45x.  Take half its coefficient (0.725).
Square it (0.525625) and add it to both sides.

Add '0.525625' to each side of the equation.
1.45x + 0.525625 + x2 = 0.3 + 0.525625

Reorder the terms:
0.525625 + 1.45x + x2 = 0.3 + 0.525625

Combine like terms: 0.3 + 0.525625 = 0.825625
0.525625 + 1.45x + x2 = 0.825625

Factor a perfect square on the left side:
(x + 0.725)(x + 0.725) = 0.825625

Calculate the square root of the right side: 0.908639092

Break this problem into two subproblems by setting 
(x + 0.725) equal to 0.908639092 and -0.908639092.

Subproblem 1

x + 0.725 = 0.908639092 Simplifying x + 0.725 = 0.908639092 Reorder the terms: 0.725 + x = 0.908639092 Solving 0.725 + x = 0.908639092 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.725' to each side of the equation. 0.725 + -0.725 + x = 0.908639092 + -0.725 Combine like terms: 0.725 + -0.725 = 0.000 0.000 + x = 0.908639092 + -0.725 x = 0.908639092 + -0.725 Combine like terms: 0.908639092 + -0.725 = 0.183639092 x = 0.183639092 Simplifying x = 0.183639092

Subproblem 2

x + 0.725 = -0.908639092 Simplifying x + 0.725 = -0.908639092 Reorder the terms: 0.725 + x = -0.908639092 Solving 0.725 + x = -0.908639092 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.725' to each side of the equation. 0.725 + -0.725 + x = -0.908639092 + -0.725 Combine like terms: 0.725 + -0.725 = 0.000 0.000 + x = -0.908639092 + -0.725 x = -0.908639092 + -0.725 Combine like terms: -0.908639092 + -0.725 = -1.633639092 x = -1.633639092 Simplifying x = -1.633639092

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.183639092, -1.633639092}

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