(5x-5)x(10-2)+x=3-1

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Solution for (5x-5)x(10-2)+x=3-1 equation:


Simplifying
(5x + -5) * x(10 + -2) + x = 3 + -1

Reorder the terms:
(-5 + 5x) * x(10 + -2) + x = 3 + -1

Combine like terms: 10 + -2 = 8
(-5 + 5x) * x(8) + x = 3 + -1

Reorder the terms for easier multiplication:
8x(-5 + 5x) + x = 3 + -1
(-5 * 8x + 5x * 8x) + x = 3 + -1
(-40x + 40x2) + x = 3 + -1

Reorder the terms:
-40x + x + 40x2 = 3 + -1

Combine like terms: -40x + x = -39x
-39x + 40x2 = 3 + -1

Combine like terms: 3 + -1 = 2
-39x + 40x2 = 2

Solving
-39x + 40x2 = 2

Solving for variable 'x'.

Reorder the terms:
-2 + -39x + 40x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + -39x + 40x2 = 0

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

Divide each side by '40'.
-0.05 + -0.975x + x2 = 0.0

Move the constant term to the right:

Add '0.05' to each side of the equation.
-0.05 + -0.975x + 0.05 + x2 = 0.0 + 0.05

Reorder the terms:
-0.05 + 0.05 + -0.975x + x2 = 0.0 + 0.05

Combine like terms: -0.05 + 0.05 = 0.00
0.00 + -0.975x + x2 = 0.0 + 0.05
-0.975x + x2 = 0.0 + 0.05

Combine like terms: 0.0 + 0.05 = 0.05
-0.975x + x2 = 0.05

The x term is -0.975x.  Take half its coefficient (-0.4875).
Square it (0.23765625) and add it to both sides.

Add '0.23765625' to each side of the equation.
-0.975x + 0.23765625 + x2 = 0.05 + 0.23765625

Reorder the terms:
0.23765625 + -0.975x + x2 = 0.05 + 0.23765625

Combine like terms: 0.05 + 0.23765625 = 0.28765625
0.23765625 + -0.975x + x2 = 0.28765625

Factor a perfect square on the left side:
(x + -0.4875)(x + -0.4875) = 0.28765625

Calculate the square root of the right side: 0.536335949

Break this problem into two subproblems by setting 
(x + -0.4875) equal to 0.536335949 and -0.536335949.

Subproblem 1

x + -0.4875 = 0.536335949 Simplifying x + -0.4875 = 0.536335949 Reorder the terms: -0.4875 + x = 0.536335949 Solving -0.4875 + x = 0.536335949 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4875' to each side of the equation. -0.4875 + 0.4875 + x = 0.536335949 + 0.4875 Combine like terms: -0.4875 + 0.4875 = 0.0000 0.0000 + x = 0.536335949 + 0.4875 x = 0.536335949 + 0.4875 Combine like terms: 0.536335949 + 0.4875 = 1.023835949 x = 1.023835949 Simplifying x = 1.023835949

Subproblem 2

x + -0.4875 = -0.536335949 Simplifying x + -0.4875 = -0.536335949 Reorder the terms: -0.4875 + x = -0.536335949 Solving -0.4875 + x = -0.536335949 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4875' to each side of the equation. -0.4875 + 0.4875 + x = -0.536335949 + 0.4875 Combine like terms: -0.4875 + 0.4875 = 0.0000 0.0000 + x = -0.536335949 + 0.4875 x = -0.536335949 + 0.4875 Combine like terms: -0.536335949 + 0.4875 = -0.048835949 x = -0.048835949 Simplifying x = -0.048835949

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.023835949, -0.048835949}

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