4x(4x)-7x+3+2x(2x)+2x-7=

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Solution for 4x(4x)-7x+3+2x(2x)+2x-7= equation:


Simplifying
4x(4x) + -7x + 3 + 2x(2x) + 2x + -7 = 0

Remove parenthesis around (4x)
4x * 4x + -7x + 3 + 2x(2x) + 2x + -7 = 0

Reorder the terms for easier multiplication:
4 * 4x * x + -7x + 3 + 2x(2x) + 2x + -7 = 0

Multiply 4 * 4
16x * x + -7x + 3 + 2x(2x) + 2x + -7 = 0

Multiply x * x
16x2 + -7x + 3 + 2x(2x) + 2x + -7 = 0

Remove parenthesis around (2x)
16x2 + -7x + 3 + 2x * 2x + 2x + -7 = 0

Reorder the terms for easier multiplication:
16x2 + -7x + 3 + 2 * 2x * x + 2x + -7 = 0

Multiply 2 * 2
16x2 + -7x + 3 + 4x * x + 2x + -7 = 0

Multiply x * x
16x2 + -7x + 3 + 4x2 + 2x + -7 = 0

Reorder the terms:
3 + -7 + -7x + 2x + 16x2 + 4x2 = 0

Combine like terms: 3 + -7 = -4
-4 + -7x + 2x + 16x2 + 4x2 = 0

Combine like terms: -7x + 2x = -5x
-4 + -5x + 16x2 + 4x2 = 0

Combine like terms: 16x2 + 4x2 = 20x2
-4 + -5x + 20x2 = 0

Solving
-4 + -5x + 20x2 = 0

Solving for variable 'x'.

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

Divide each side by '20'.
-0.2 + -0.25x + x2 = 0.0

Move the constant term to the right:

Add '0.2' to each side of the equation.
-0.2 + -0.25x + 0.2 + x2 = 0.0 + 0.2

Reorder the terms:
-0.2 + 0.2 + -0.25x + x2 = 0.0 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + -0.25x + x2 = 0.0 + 0.2
-0.25x + x2 = 0.0 + 0.2

Combine like terms: 0.0 + 0.2 = 0.2
-0.25x + x2 = 0.2

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 = 0.2 + 0.015625

Reorder the terms:
0.015625 + -0.25x + x2 = 0.2 + 0.015625

Combine like terms: 0.2 + 0.015625 = 0.215625
0.015625 + -0.25x + x2 = 0.215625

Factor a perfect square on the left side:
(x + -0.125)(x + -0.125) = 0.215625

Calculate the square root of the right side: 0.464354391

Break this problem into two subproblems by setting 
(x + -0.125) equal to 0.464354391 and -0.464354391.

Subproblem 1

x + -0.125 = 0.464354391 Simplifying x + -0.125 = 0.464354391 Reorder the terms: -0.125 + x = 0.464354391 Solving -0.125 + x = 0.464354391 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 = 0.464354391 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + x = 0.464354391 + 0.125 x = 0.464354391 + 0.125 Combine like terms: 0.464354391 + 0.125 = 0.589354391 x = 0.589354391 Simplifying x = 0.589354391

Subproblem 2

x + -0.125 = -0.464354391 Simplifying x + -0.125 = -0.464354391 Reorder the terms: -0.125 + x = -0.464354391 Solving -0.125 + x = -0.464354391 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 = -0.464354391 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + x = -0.464354391 + 0.125 x = -0.464354391 + 0.125 Combine like terms: -0.464354391 + 0.125 = -0.339354391 x = -0.339354391 Simplifying x = -0.339354391

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.589354391, -0.339354391}

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