10x^2-15x+2=0

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Solution for 10x^2-15x+2=0 equation:


Simplifying
10x2 + -15x + 2 = 0

Reorder the terms:
2 + -15x + 10x2 = 0

Solving
2 + -15x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
0.2 + -1.5x + x2 = 0

Move the constant term to the right:

Add '-0.2' to each side of the equation.
0.2 + -1.5x + -0.2 + x2 = 0 + -0.2

Reorder the terms:
0.2 + -0.2 + -1.5x + x2 = 0 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + -1.5x + x2 = 0 + -0.2
-1.5x + x2 = 0 + -0.2

Combine like terms: 0 + -0.2 = -0.2
-1.5x + x2 = -0.2

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 = -0.2 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = -0.2 + 0.5625

Combine like terms: -0.2 + 0.5625 = 0.3625
0.5625 + -1.5x + x2 = 0.3625

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 0.3625

Calculate the square root of the right side: 0.602079729

Break this problem into two subproblems by setting 
(x + -0.75) equal to 0.602079729 and -0.602079729.

Subproblem 1

x + -0.75 = 0.602079729 Simplifying x + -0.75 = 0.602079729 Reorder the terms: -0.75 + x = 0.602079729 Solving -0.75 + x = 0.602079729 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 = 0.602079729 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 0.602079729 + 0.75 x = 0.602079729 + 0.75 Combine like terms: 0.602079729 + 0.75 = 1.352079729 x = 1.352079729 Simplifying x = 1.352079729

Subproblem 2

x + -0.75 = -0.602079729 Simplifying x + -0.75 = -0.602079729 Reorder the terms: -0.75 + x = -0.602079729 Solving -0.75 + x = -0.602079729 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 = -0.602079729 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -0.602079729 + 0.75 x = -0.602079729 + 0.75 Combine like terms: -0.602079729 + 0.75 = 0.147920271 x = 0.147920271 Simplifying x = 0.147920271

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.352079729, 0.147920271}

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