(4x*4x-4x+11)+(8x*8x+7x-53)=

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Solution for (4x*4x-4x+11)+(8x*8x+7x-53)= equation:


Simplifying
(4x * 4x + -4x + 11) + (8x * 8x + 7x + -53) = 0

Reorder the terms for easier multiplication:
(4 * 4x * x + -4x + 11) + (8x * 8x + 7x + -53) = 0

Multiply 4 * 4
(16x * x + -4x + 11) + (8x * 8x + 7x + -53) = 0

Multiply x * x
(16x2 + -4x + 11) + (8x * 8x + 7x + -53) = 0

Reorder the terms:
(11 + -4x + 16x2) + (8x * 8x + 7x + -53) = 0

Remove parenthesis around (11 + -4x + 16x2)
11 + -4x + 16x2 + (8x * 8x + 7x + -53) = 0

Reorder the terms for easier multiplication:
11 + -4x + 16x2 + (8 * 8x * x + 7x + -53) = 0

Multiply 8 * 8
11 + -4x + 16x2 + (64x * x + 7x + -53) = 0

Multiply x * x
11 + -4x + 16x2 + (64x2 + 7x + -53) = 0

Reorder the terms:
11 + -4x + 16x2 + (-53 + 7x + 64x2) = 0

Remove parenthesis around (-53 + 7x + 64x2)
11 + -4x + 16x2 + -53 + 7x + 64x2 = 0

Reorder the terms:
11 + -53 + -4x + 7x + 16x2 + 64x2 = 0

Combine like terms: 11 + -53 = -42
-42 + -4x + 7x + 16x2 + 64x2 = 0

Combine like terms: -4x + 7x = 3x
-42 + 3x + 16x2 + 64x2 = 0

Combine like terms: 16x2 + 64x2 = 80x2
-42 + 3x + 80x2 = 0

Solving
-42 + 3x + 80x2 = 0

Solving for variable 'x'.

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

Divide each side by '80'.
-0.525 + 0.0375x + x2 = 0.0

Move the constant term to the right:

Add '0.525' to each side of the equation.
-0.525 + 0.0375x + 0.525 + x2 = 0.0 + 0.525

Reorder the terms:
-0.525 + 0.525 + 0.0375x + x2 = 0.0 + 0.525

Combine like terms: -0.525 + 0.525 = 0.000
0.000 + 0.0375x + x2 = 0.0 + 0.525
0.0375x + x2 = 0.0 + 0.525

Combine like terms: 0.0 + 0.525 = 0.525
0.0375x + x2 = 0.525

The x term is 0.0375x.  Take half its coefficient (0.01875).
Square it (0.0003515625) and add it to both sides.

Add '0.0003515625' to each side of the equation.
0.0375x + 0.0003515625 + x2 = 0.525 + 0.0003515625

Reorder the terms:
0.0003515625 + 0.0375x + x2 = 0.525 + 0.0003515625

Combine like terms: 0.525 + 0.0003515625 = 0.5253515625
0.0003515625 + 0.0375x + x2 = 0.5253515625

Factor a perfect square on the left side:
(x + 0.01875)(x + 0.01875) = 0.5253515625

Calculate the square root of the right side: 0.724811398

Break this problem into two subproblems by setting 
(x + 0.01875) equal to 0.724811398 and -0.724811398.

Subproblem 1

x + 0.01875 = 0.724811398 Simplifying x + 0.01875 = 0.724811398 Reorder the terms: 0.01875 + x = 0.724811398 Solving 0.01875 + x = 0.724811398 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.01875' to each side of the equation. 0.01875 + -0.01875 + x = 0.724811398 + -0.01875 Combine like terms: 0.01875 + -0.01875 = 0.00000 0.00000 + x = 0.724811398 + -0.01875 x = 0.724811398 + -0.01875 Combine like terms: 0.724811398 + -0.01875 = 0.706061398 x = 0.706061398 Simplifying x = 0.706061398

Subproblem 2

x + 0.01875 = -0.724811398 Simplifying x + 0.01875 = -0.724811398 Reorder the terms: 0.01875 + x = -0.724811398 Solving 0.01875 + x = -0.724811398 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.01875' to each side of the equation. 0.01875 + -0.01875 + x = -0.724811398 + -0.01875 Combine like terms: 0.01875 + -0.01875 = 0.00000 0.00000 + x = -0.724811398 + -0.01875 x = -0.724811398 + -0.01875 Combine like terms: -0.724811398 + -0.01875 = -0.743561398 x = -0.743561398 Simplifying x = -0.743561398

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.706061398, -0.743561398}

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