7x^2+29x-6=0

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Solution for 7x^2+29x-6=0 equation:


Simplifying
7x2 + 29x + -6 = 0

Reorder the terms:
-6 + 29x + 7x2 = 0

Solving
-6 + 29x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
-0.8571428571 + 4.142857143x + x2 = 0

Move the constant term to the right:

Add '0.8571428571' to each side of the equation.
-0.8571428571 + 4.142857143x + 0.8571428571 + x2 = 0 + 0.8571428571

Reorder the terms:
-0.8571428571 + 0.8571428571 + 4.142857143x + x2 = 0 + 0.8571428571

Combine like terms: -0.8571428571 + 0.8571428571 = 0.0000000000
0.0000000000 + 4.142857143x + x2 = 0 + 0.8571428571
4.142857143x + x2 = 0 + 0.8571428571

Combine like terms: 0 + 0.8571428571 = 0.8571428571
4.142857143x + x2 = 0.8571428571

The x term is 4.142857143x.  Take half its coefficient (2.071428572).
Square it (4.290816329) and add it to both sides.

Add '4.290816329' to each side of the equation.
4.142857143x + 4.290816329 + x2 = 0.8571428571 + 4.290816329

Reorder the terms:
4.290816329 + 4.142857143x + x2 = 0.8571428571 + 4.290816329

Combine like terms: 0.8571428571 + 4.290816329 = 5.1479591861
4.290816329 + 4.142857143x + x2 = 5.1479591861

Factor a perfect square on the left side:
(x + 2.071428572)(x + 2.071428572) = 5.1479591861

Calculate the square root of the right side: 2.268911454

Break this problem into two subproblems by setting 
(x + 2.071428572) equal to 2.268911454 and -2.268911454.

Subproblem 1

x + 2.071428572 = 2.268911454 Simplifying x + 2.071428572 = 2.268911454 Reorder the terms: 2.071428572 + x = 2.268911454 Solving 2.071428572 + x = 2.268911454 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.071428572' to each side of the equation. 2.071428572 + -2.071428572 + x = 2.268911454 + -2.071428572 Combine like terms: 2.071428572 + -2.071428572 = 0.000000000 0.000000000 + x = 2.268911454 + -2.071428572 x = 2.268911454 + -2.071428572 Combine like terms: 2.268911454 + -2.071428572 = 0.197482882 x = 0.197482882 Simplifying x = 0.197482882

Subproblem 2

x + 2.071428572 = -2.268911454 Simplifying x + 2.071428572 = -2.268911454 Reorder the terms: 2.071428572 + x = -2.268911454 Solving 2.071428572 + x = -2.268911454 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.071428572' to each side of the equation. 2.071428572 + -2.071428572 + x = -2.268911454 + -2.071428572 Combine like terms: 2.071428572 + -2.071428572 = 0.000000000 0.000000000 + x = -2.268911454 + -2.071428572 x = -2.268911454 + -2.071428572 Combine like terms: -2.268911454 + -2.071428572 = -4.340340026 x = -4.340340026 Simplifying x = -4.340340026

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.197482882, -4.340340026}

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