x-4(x-7)8x=6

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Solution for x-4(x-7)8x=6 equation:


Simplifying
x + -4(x + -7) * 8x = 6

Reorder the terms:
x + -4(-7 + x) * 8x = 6

Reorder the terms for easier multiplication:
x + -4 * 8x(-7 + x) = 6

Multiply -4 * 8
x + -32x(-7 + x) = 6
x + (-7 * -32x + x * -32x) = 6
x + (224x + -32x2) = 6

Combine like terms: x + 224x = 225x
225x + -32x2 = 6

Solving
225x + -32x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + 225x + -32x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + 225x + -32x2 = 0

Begin completing the square.  Divide all terms by
-32 the coefficient of the squared term: 

Divide each side by '-32'.
0.1875 + -7.03125x + x2 = 0

Move the constant term to the right:

Add '-0.1875' to each side of the equation.
0.1875 + -7.03125x + -0.1875 + x2 = 0 + -0.1875

Reorder the terms:
0.1875 + -0.1875 + -7.03125x + x2 = 0 + -0.1875

Combine like terms: 0.1875 + -0.1875 = 0.0000
0.0000 + -7.03125x + x2 = 0 + -0.1875
-7.03125x + x2 = 0 + -0.1875

Combine like terms: 0 + -0.1875 = -0.1875
-7.03125x + x2 = -0.1875

The x term is -7.03125x.  Take half its coefficient (-3.515625).
Square it (12.35961914) and add it to both sides.

Add '12.35961914' to each side of the equation.
-7.03125x + 12.35961914 + x2 = -0.1875 + 12.35961914

Reorder the terms:
12.35961914 + -7.03125x + x2 = -0.1875 + 12.35961914

Combine like terms: -0.1875 + 12.35961914 = 12.17211914
12.35961914 + -7.03125x + x2 = 12.17211914

Factor a perfect square on the left side:
(x + -3.515625)(x + -3.515625) = 12.17211914

Calculate the square root of the right side: 3.488856423

Break this problem into two subproblems by setting 
(x + -3.515625) equal to 3.488856423 and -3.488856423.

Subproblem 1

x + -3.515625 = 3.488856423 Simplifying x + -3.515625 = 3.488856423 Reorder the terms: -3.515625 + x = 3.488856423 Solving -3.515625 + x = 3.488856423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.515625' to each side of the equation. -3.515625 + 3.515625 + x = 3.488856423 + 3.515625 Combine like terms: -3.515625 + 3.515625 = 0.000000 0.000000 + x = 3.488856423 + 3.515625 x = 3.488856423 + 3.515625 Combine like terms: 3.488856423 + 3.515625 = 7.004481423 x = 7.004481423 Simplifying x = 7.004481423

Subproblem 2

x + -3.515625 = -3.488856423 Simplifying x + -3.515625 = -3.488856423 Reorder the terms: -3.515625 + x = -3.488856423 Solving -3.515625 + x = -3.488856423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.515625' to each side of the equation. -3.515625 + 3.515625 + x = -3.488856423 + 3.515625 Combine like terms: -3.515625 + 3.515625 = 0.000000 0.000000 + x = -3.488856423 + 3.515625 x = -3.488856423 + 3.515625 Combine like terms: -3.488856423 + 3.515625 = 0.026768577 x = 0.026768577 Simplifying x = 0.026768577

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.004481423, 0.026768577}

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