7x^2=29x+4

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


Simplifying
7x2 = 29x + 4

Reorder the terms:
7x2 = 4 + 29x

Solving
7x2 = 4 + 29x

Solving for variable 'x'.

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

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

Combine like terms: 4 + -4 = 0
-4 + -29x + 7x2 = 0 + 29x + -29x
-4 + -29x + 7x2 = 29x + -29x

Combine like terms: 29x + -29x = 0
-4 + -29x + 7x2 = 0

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

Divide each side by '7'.
-0.5714285714 + -4.142857143x + x2 = 0

Move the constant term to the right:

Add '0.5714285714' to each side of the equation.
-0.5714285714 + -4.142857143x + 0.5714285714 + x2 = 0 + 0.5714285714

Reorder the terms:
-0.5714285714 + 0.5714285714 + -4.142857143x + x2 = 0 + 0.5714285714

Combine like terms: -0.5714285714 + 0.5714285714 = 0.0000000000
0.0000000000 + -4.142857143x + x2 = 0 + 0.5714285714
-4.142857143x + x2 = 0 + 0.5714285714

Combine like terms: 0 + 0.5714285714 = 0.5714285714
-4.142857143x + x2 = 0.5714285714

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 = 0.5714285714 + 4.290816329

Reorder the terms:
4.290816329 + -4.142857143x + x2 = 0.5714285714 + 4.290816329

Combine like terms: 0.5714285714 + 4.290816329 = 4.8622449004
4.290816329 + -4.142857143x + x2 = 4.8622449004

Factor a perfect square on the left side:
(x + -2.071428572)(x + -2.071428572) = 4.8622449004

Calculate the square root of the right side: 2.205049863

Break this problem into two subproblems by setting 
(x + -2.071428572) equal to 2.205049863 and -2.205049863.

Subproblem 1

x + -2.071428572 = 2.205049863 Simplifying x + -2.071428572 = 2.205049863 Reorder the terms: -2.071428572 + x = 2.205049863 Solving -2.071428572 + x = 2.205049863 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 = 2.205049863 + 2.071428572 Combine like terms: -2.071428572 + 2.071428572 = 0.000000000 0.000000000 + x = 2.205049863 + 2.071428572 x = 2.205049863 + 2.071428572 Combine like terms: 2.205049863 + 2.071428572 = 4.276478435 x = 4.276478435 Simplifying x = 4.276478435

Subproblem 2

x + -2.071428572 = -2.205049863 Simplifying x + -2.071428572 = -2.205049863 Reorder the terms: -2.071428572 + x = -2.205049863 Solving -2.071428572 + x = -2.205049863 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 = -2.205049863 + 2.071428572 Combine like terms: -2.071428572 + 2.071428572 = 0.000000000 0.000000000 + x = -2.205049863 + 2.071428572 x = -2.205049863 + 2.071428572 Combine like terms: -2.205049863 + 2.071428572 = -0.133621291 x = -0.133621291 Simplifying x = -0.133621291

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.276478435, -0.133621291}

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