(x-1)(2x-1)=33

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Solution for (x-1)(2x-1)=33 equation:


Simplifying
(x + -1)(2x + -1) = 33

Reorder the terms:
(-1 + x)(2x + -1) = 33

Reorder the terms:
(-1 + x)(-1 + 2x) = 33

Multiply (-1 + x) * (-1 + 2x)
(-1(-1 + 2x) + x(-1 + 2x)) = 33
((-1 * -1 + 2x * -1) + x(-1 + 2x)) = 33
((1 + -2x) + x(-1 + 2x)) = 33
(1 + -2x + (-1 * x + 2x * x)) = 33
(1 + -2x + (-1x + 2x2)) = 33

Combine like terms: -2x + -1x = -3x
(1 + -3x + 2x2) = 33

Solving
1 + -3x + 2x2 = 33

Solving for variable 'x'.

Reorder the terms:
1 + -33 + -3x + 2x2 = 33 + -33

Combine like terms: 1 + -33 = -32
-32 + -3x + 2x2 = 33 + -33

Combine like terms: 33 + -33 = 0
-32 + -3x + 2x2 = 0

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

Divide each side by '2'.
-16 + -1.5x + x2 = 0

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + -1.5x + 16 + x2 = 0 + 16

Reorder the terms:
-16 + 16 + -1.5x + x2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -1.5x + x2 = 0 + 16
-1.5x + x2 = 0 + 16

Combine like terms: 0 + 16 = 16
-1.5x + x2 = 16

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = 16 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 16 + 0.5625

Combine like terms: 16 + 0.5625 = 16.5625
0.5625 + -1.5x + x2 = 16.5625

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 16.5625

Calculate the square root of the right side: 4.069705149

Break this problem into two subproblems by setting 
(x + -0.75) equal to 4.069705149 and -4.069705149.

Subproblem 1

x + -0.75 = 4.069705149 Simplifying x + -0.75 = 4.069705149 Reorder the terms: -0.75 + x = 4.069705149 Solving -0.75 + x = 4.069705149 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 4.069705149 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 4.069705149 + 0.75 x = 4.069705149 + 0.75 Combine like terms: 4.069705149 + 0.75 = 4.819705149 x = 4.819705149 Simplifying x = 4.819705149

Subproblem 2

x + -0.75 = -4.069705149 Simplifying x + -0.75 = -4.069705149 Reorder the terms: -0.75 + x = -4.069705149 Solving -0.75 + x = -4.069705149 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -4.069705149 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -4.069705149 + 0.75 x = -4.069705149 + 0.75 Combine like terms: -4.069705149 + 0.75 = -3.319705149 x = -3.319705149 Simplifying x = -3.319705149

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.819705149, -3.319705149}

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