(4x^2-4x-67)+(4x^2+6x)=

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Solution for (4x^2-4x-67)+(4x^2+6x)= equation:


Simplifying
(4x2 + -4x + -67) + (4x2 + 6x) = 0

Reorder the terms:
(-67 + -4x + 4x2) + (4x2 + 6x) = 0

Remove parenthesis around (-67 + -4x + 4x2)
-67 + -4x + 4x2 + (4x2 + 6x) = 0

Reorder the terms:
-67 + -4x + 4x2 + (6x + 4x2) = 0

Remove parenthesis around (6x + 4x2)
-67 + -4x + 4x2 + 6x + 4x2 = 0

Reorder the terms:
-67 + -4x + 6x + 4x2 + 4x2 = 0

Combine like terms: -4x + 6x = 2x
-67 + 2x + 4x2 + 4x2 = 0

Combine like terms: 4x2 + 4x2 = 8x2
-67 + 2x + 8x2 = 0

Solving
-67 + 2x + 8x2 = 0

Solving for variable 'x'.

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

Divide each side by '8'.
-8.375 + 0.25x + x2 = 0

Move the constant term to the right:

Add '8.375' to each side of the equation.
-8.375 + 0.25x + 8.375 + x2 = 0 + 8.375

Reorder the terms:
-8.375 + 8.375 + 0.25x + x2 = 0 + 8.375

Combine like terms: -8.375 + 8.375 = 0.000
0.000 + 0.25x + x2 = 0 + 8.375
0.25x + x2 = 0 + 8.375

Combine like terms: 0 + 8.375 = 8.375
0.25x + x2 = 8.375

The x term is 0.25x.  Take half its coefficient (0.125).
Square it (0.015625) and add it to both sides.

Add '0.015625' to each side of the equation.
0.25x + 0.015625 + x2 = 8.375 + 0.015625

Reorder the terms:
0.015625 + 0.25x + x2 = 8.375 + 0.015625

Combine like terms: 8.375 + 0.015625 = 8.390625
0.015625 + 0.25x + x2 = 8.390625

Factor a perfect square on the left side:
(x + 0.125)(x + 0.125) = 8.390625

Calculate the square root of the right side: 2.896657557

Break this problem into two subproblems by setting 
(x + 0.125) equal to 2.896657557 and -2.896657557.

Subproblem 1

x + 0.125 = 2.896657557 Simplifying x + 0.125 = 2.896657557 Reorder the terms: 0.125 + x = 2.896657557 Solving 0.125 + x = 2.896657557 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.125' to each side of the equation. 0.125 + -0.125 + x = 2.896657557 + -0.125 Combine like terms: 0.125 + -0.125 = 0.000 0.000 + x = 2.896657557 + -0.125 x = 2.896657557 + -0.125 Combine like terms: 2.896657557 + -0.125 = 2.771657557 x = 2.771657557 Simplifying x = 2.771657557

Subproblem 2

x + 0.125 = -2.896657557 Simplifying x + 0.125 = -2.896657557 Reorder the terms: 0.125 + x = -2.896657557 Solving 0.125 + x = -2.896657557 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.125' to each side of the equation. 0.125 + -0.125 + x = -2.896657557 + -0.125 Combine like terms: 0.125 + -0.125 = 0.000 0.000 + x = -2.896657557 + -0.125 x = -2.896657557 + -0.125 Combine like terms: -2.896657557 + -0.125 = -3.021657557 x = -3.021657557 Simplifying x = -3.021657557

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.771657557, -3.021657557}

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