(4x^2-2x-29)+(3x^2+9x)=

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Solution for (4x^2-2x-29)+(3x^2+9x)= equation:


Simplifying
(4x2 + -2x + -29) + (3x2 + 9x) = 0

Reorder the terms:
(-29 + -2x + 4x2) + (3x2 + 9x) = 0

Remove parenthesis around (-29 + -2x + 4x2)
-29 + -2x + 4x2 + (3x2 + 9x) = 0

Reorder the terms:
-29 + -2x + 4x2 + (9x + 3x2) = 0

Remove parenthesis around (9x + 3x2)
-29 + -2x + 4x2 + 9x + 3x2 = 0

Reorder the terms:
-29 + -2x + 9x + 4x2 + 3x2 = 0

Combine like terms: -2x + 9x = 7x
-29 + 7x + 4x2 + 3x2 = 0

Combine like terms: 4x2 + 3x2 = 7x2
-29 + 7x + 7x2 = 0

Solving
-29 + 7x + 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'.
-4.142857143 + x + x2 = 0

Move the constant term to the right:

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

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

Combine like terms: -4.142857143 + 4.142857143 = 0.000000000
0.000000000 + x + x2 = 0 + 4.142857143
x + x2 = 0 + 4.142857143

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

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 4.142857143 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 4.142857143 + 0.25

Combine like terms: 4.142857143 + 0.25 = 4.392857143
1.25 + x2 = 4.392857143

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 4.392857143

Calculate the square root of the right side: 2.095914393

Break this problem into two subproblems by setting 
(x + 0.5) equal to 2.095914393 and -2.095914393.

Subproblem 1

x + 0.5 = 2.095914393 Simplifying x + 0.5 = 2.095914393 Reorder the terms: 0.5 + x = 2.095914393 Solving 0.5 + x = 2.095914393 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 2.095914393 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 2.095914393 + -0.5 x = 2.095914393 + -0.5 Combine like terms: 2.095914393 + -0.5 = 1.595914393 x = 1.595914393 Simplifying x = 1.595914393

Subproblem 2

x + 0.5 = -2.095914393 Simplifying x + 0.5 = -2.095914393 Reorder the terms: 0.5 + x = -2.095914393 Solving 0.5 + x = -2.095914393 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -2.095914393 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -2.095914393 + -0.5 x = -2.095914393 + -0.5 Combine like terms: -2.095914393 + -0.5 = -2.595914393 x = -2.595914393 Simplifying x = -2.595914393

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.595914393, -2.595914393}

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