4x^2+7x-29=0

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Solution for 4x^2+7x-29=0 equation:


Simplifying
4x2 + 7x + -29 = 0

Reorder the terms:
-29 + 7x + 4x2 = 0

Solving
-29 + 7x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-7.25 + 1.75x + x2 = 0

Move the constant term to the right:

Add '7.25' to each side of the equation.
-7.25 + 1.75x + 7.25 + x2 = 0 + 7.25

Reorder the terms:
-7.25 + 7.25 + 1.75x + x2 = 0 + 7.25

Combine like terms: -7.25 + 7.25 = 0.00
0.00 + 1.75x + x2 = 0 + 7.25
1.75x + x2 = 0 + 7.25

Combine like terms: 0 + 7.25 = 7.25
1.75x + x2 = 7.25

The x term is 1.75x.  Take half its coefficient (0.875).
Square it (0.765625) and add it to both sides.

Add '0.765625' to each side of the equation.
1.75x + 0.765625 + x2 = 7.25 + 0.765625

Reorder the terms:
0.765625 + 1.75x + x2 = 7.25 + 0.765625

Combine like terms: 7.25 + 0.765625 = 8.015625
0.765625 + 1.75x + x2 = 8.015625

Factor a perfect square on the left side:
(x + 0.875)(x + 0.875) = 8.015625

Calculate the square root of the right side: 2.831187913

Break this problem into two subproblems by setting 
(x + 0.875) equal to 2.831187913 and -2.831187913.

Subproblem 1

x + 0.875 = 2.831187913 Simplifying x + 0.875 = 2.831187913 Reorder the terms: 0.875 + x = 2.831187913 Solving 0.875 + x = 2.831187913 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.875' to each side of the equation. 0.875 + -0.875 + x = 2.831187913 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + x = 2.831187913 + -0.875 x = 2.831187913 + -0.875 Combine like terms: 2.831187913 + -0.875 = 1.956187913 x = 1.956187913 Simplifying x = 1.956187913

Subproblem 2

x + 0.875 = -2.831187913 Simplifying x + 0.875 = -2.831187913 Reorder the terms: 0.875 + x = -2.831187913 Solving 0.875 + x = -2.831187913 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.875' to each side of the equation. 0.875 + -0.875 + x = -2.831187913 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + x = -2.831187913 + -0.875 x = -2.831187913 + -0.875 Combine like terms: -2.831187913 + -0.875 = -3.706187913 x = -3.706187913 Simplifying x = -3.706187913

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.956187913, -3.706187913}

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