7x^2+4=2x+29

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Solution for 7x^2+4=2x+29 equation:


Simplifying
7x2 + 4 = 2x + 29

Reorder the terms:
4 + 7x2 = 2x + 29

Reorder the terms:
4 + 7x2 = 29 + 2x

Solving
4 + 7x2 = 29 + 2x

Solving for variable 'x'.

Reorder the terms:
4 + -29 + -2x + 7x2 = 29 + 2x + -29 + -2x

Combine like terms: 4 + -29 = -25
-25 + -2x + 7x2 = 29 + 2x + -29 + -2x

Reorder the terms:
-25 + -2x + 7x2 = 29 + -29 + 2x + -2x

Combine like terms: 29 + -29 = 0
-25 + -2x + 7x2 = 0 + 2x + -2x
-25 + -2x + 7x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
-25 + -2x + 7x2 = 0

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

Divide each side by '7'.
-3.571428571 + -0.2857142857x + x2 = 0

Move the constant term to the right:

Add '3.571428571' to each side of the equation.
-3.571428571 + -0.2857142857x + 3.571428571 + x2 = 0 + 3.571428571

Reorder the terms:
-3.571428571 + 3.571428571 + -0.2857142857x + x2 = 0 + 3.571428571

Combine like terms: -3.571428571 + 3.571428571 = 0.000000000
0.000000000 + -0.2857142857x + x2 = 0 + 3.571428571
-0.2857142857x + x2 = 0 + 3.571428571

Combine like terms: 0 + 3.571428571 = 3.571428571
-0.2857142857x + x2 = 3.571428571

The x term is -0.2857142857x.  Take half its coefficient (-0.1428571429).
Square it (0.02040816328) and add it to both sides.

Add '0.02040816328' to each side of the equation.
-0.2857142857x + 0.02040816328 + x2 = 3.571428571 + 0.02040816328

Reorder the terms:
0.02040816328 + -0.2857142857x + x2 = 3.571428571 + 0.02040816328

Combine like terms: 3.571428571 + 0.02040816328 = 3.59183673428
0.02040816328 + -0.2857142857x + x2 = 3.59183673428

Factor a perfect square on the left side:
(x + -0.1428571429)(x + -0.1428571429) = 3.59183673428

Calculate the square root of the right side: 1.895214166

Break this problem into two subproblems by setting 
(x + -0.1428571429) equal to 1.895214166 and -1.895214166.

Subproblem 1

x + -0.1428571429 = 1.895214166 Simplifying x + -0.1428571429 = 1.895214166 Reorder the terms: -0.1428571429 + x = 1.895214166 Solving -0.1428571429 + x = 1.895214166 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.1428571429 + x = 1.895214166 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + x = 1.895214166 + 0.1428571429 x = 1.895214166 + 0.1428571429 Combine like terms: 1.895214166 + 0.1428571429 = 2.0380713089 x = 2.0380713089 Simplifying x = 2.0380713089

Subproblem 2

x + -0.1428571429 = -1.895214166 Simplifying x + -0.1428571429 = -1.895214166 Reorder the terms: -0.1428571429 + x = -1.895214166 Solving -0.1428571429 + x = -1.895214166 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.1428571429 + x = -1.895214166 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + x = -1.895214166 + 0.1428571429 x = -1.895214166 + 0.1428571429 Combine like terms: -1.895214166 + 0.1428571429 = -1.7523570231 x = -1.7523570231 Simplifying x = -1.7523570231

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.0380713089, -1.7523570231}

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