2(x-0.1)(2x-1.5)=0

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Solution for 2(x-0.1)(2x-1.5)=0 equation:


Simplifying
2(x + -0.1)(2x + -1.5) = 0

Reorder the terms:
2(-0.1 + x)(2x + -1.5) = 0

Reorder the terms:
2(-0.1 + x)(-1.5 + 2x) = 0

Multiply (-0.1 + x) * (-1.5 + 2x)
2(-0.1(-1.5 + 2x) + x(-1.5 + 2x)) = 0
2((-1.5 * -0.1 + 2x * -0.1) + x(-1.5 + 2x)) = 0
2((0.15 + -0.2x) + x(-1.5 + 2x)) = 0
2(0.15 + -0.2x + (-1.5 * x + 2x * x)) = 0
2(0.15 + -0.2x + (-1.5x + 2x2)) = 0

Combine like terms: -0.2x + -1.5x = -1.7x
2(0.15 + -1.7x + 2x2) = 0
(0.15 * 2 + -1.7x * 2 + 2x2 * 2) = 0
(0.3 + -3.4x + 4x2) = 0

Solving
0.3 + -3.4x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
0.075 + -0.85x + x2 = 0

Move the constant term to the right:

Add '-0.075' to each side of the equation.
0.075 + -0.85x + -0.075 + x2 = 0 + -0.075

Reorder the terms:
0.075 + -0.075 + -0.85x + x2 = 0 + -0.075

Combine like terms: 0.075 + -0.075 = 0.000
0.000 + -0.85x + x2 = 0 + -0.075
-0.85x + x2 = 0 + -0.075

Combine like terms: 0 + -0.075 = -0.075
-0.85x + x2 = -0.075

The x term is -0.85x.  Take half its coefficient (-0.425).
Square it (0.180625) and add it to both sides.

Add '0.180625' to each side of the equation.
-0.85x + 0.180625 + x2 = -0.075 + 0.180625

Reorder the terms:
0.180625 + -0.85x + x2 = -0.075 + 0.180625

Combine like terms: -0.075 + 0.180625 = 0.105625
0.180625 + -0.85x + x2 = 0.105625

Factor a perfect square on the left side:
(x + -0.425)(x + -0.425) = 0.105625

Calculate the square root of the right side: 0.325

Break this problem into two subproblems by setting 
(x + -0.425) equal to 0.325 and -0.325.

Subproblem 1

x + -0.425 = 0.325 Simplifying x + -0.425 = 0.325 Reorder the terms: -0.425 + x = 0.325 Solving -0.425 + x = 0.325 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.425' to each side of the equation. -0.425 + 0.425 + x = 0.325 + 0.425 Combine like terms: -0.425 + 0.425 = 0.000 0.000 + x = 0.325 + 0.425 x = 0.325 + 0.425 Combine like terms: 0.325 + 0.425 = 0.75 x = 0.75 Simplifying x = 0.75

Subproblem 2

x + -0.425 = -0.325 Simplifying x + -0.425 = -0.325 Reorder the terms: -0.425 + x = -0.325 Solving -0.425 + x = -0.325 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.425' to each side of the equation. -0.425 + 0.425 + x = -0.325 + 0.425 Combine like terms: -0.425 + 0.425 = 0.000 0.000 + x = -0.325 + 0.425 x = -0.325 + 0.425 Combine like terms: -0.325 + 0.425 = 0.1 x = 0.1 Simplifying x = 0.1

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.75, 0.1}

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