4x^2+23-35=-2x^2-21x-11

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Solution for 4x^2+23-35=-2x^2-21x-11 equation:


Simplifying
4x2 + 23 + -35 = -2x2 + -21x + -11

Reorder the terms:
23 + -35 + 4x2 = -2x2 + -21x + -11

Combine like terms: 23 + -35 = -12
-12 + 4x2 = -2x2 + -21x + -11

Reorder the terms:
-12 + 4x2 = -11 + -21x + -2x2

Solving
-12 + 4x2 = -11 + -21x + -2x2

Solving for variable 'x'.

Reorder the terms:
-12 + 11 + 21x + 4x2 + 2x2 = -11 + -21x + -2x2 + 11 + 21x + 2x2

Combine like terms: -12 + 11 = -1
-1 + 21x + 4x2 + 2x2 = -11 + -21x + -2x2 + 11 + 21x + 2x2

Combine like terms: 4x2 + 2x2 = 6x2
-1 + 21x + 6x2 = -11 + -21x + -2x2 + 11 + 21x + 2x2

Reorder the terms:
-1 + 21x + 6x2 = -11 + 11 + -21x + 21x + -2x2 + 2x2

Combine like terms: -11 + 11 = 0
-1 + 21x + 6x2 = 0 + -21x + 21x + -2x2 + 2x2
-1 + 21x + 6x2 = -21x + 21x + -2x2 + 2x2

Combine like terms: -21x + 21x = 0
-1 + 21x + 6x2 = 0 + -2x2 + 2x2
-1 + 21x + 6x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
-1 + 21x + 6x2 = 0

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

Divide each side by '6'.
-0.1666666667 + 3.5x + x2 = 0

Move the constant term to the right:

Add '0.1666666667' to each side of the equation.
-0.1666666667 + 3.5x + 0.1666666667 + x2 = 0 + 0.1666666667

Reorder the terms:
-0.1666666667 + 0.1666666667 + 3.5x + x2 = 0 + 0.1666666667

Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000
0.0000000000 + 3.5x + x2 = 0 + 0.1666666667
3.5x + x2 = 0 + 0.1666666667

Combine like terms: 0 + 0.1666666667 = 0.1666666667
3.5x + x2 = 0.1666666667

The x term is 3.5x.  Take half its coefficient (1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
3.5x + 3.0625 + x2 = 0.1666666667 + 3.0625

Reorder the terms:
3.0625 + 3.5x + x2 = 0.1666666667 + 3.0625

Combine like terms: 0.1666666667 + 3.0625 = 3.2291666667
3.0625 + 3.5x + x2 = 3.2291666667

Factor a perfect square on the left side:
(x + 1.75)(x + 1.75) = 3.2291666667

Calculate the square root of the right side: 1.796988221

Break this problem into two subproblems by setting 
(x + 1.75) equal to 1.796988221 and -1.796988221.

Subproblem 1

x + 1.75 = 1.796988221 Simplifying x + 1.75 = 1.796988221 Reorder the terms: 1.75 + x = 1.796988221 Solving 1.75 + x = 1.796988221 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + x = 1.796988221 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + x = 1.796988221 + -1.75 x = 1.796988221 + -1.75 Combine like terms: 1.796988221 + -1.75 = 0.046988221 x = 0.046988221 Simplifying x = 0.046988221

Subproblem 2

x + 1.75 = -1.796988221 Simplifying x + 1.75 = -1.796988221 Reorder the terms: 1.75 + x = -1.796988221 Solving 1.75 + x = -1.796988221 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + x = -1.796988221 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + x = -1.796988221 + -1.75 x = -1.796988221 + -1.75 Combine like terms: -1.796988221 + -1.75 = -3.546988221 x = -3.546988221 Simplifying x = -3.546988221

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.046988221, -3.546988221}

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