x^2-3x+1.05=0

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Solution for x^2-3x+1.05=0 equation:


Simplifying
x2 + -3x + 1.05 = 0

Reorder the terms:
1.05 + -3x + x2 = 0

Solving
1.05 + -3x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-1.05' to each side of the equation.
1.05 + -3x + -1.05 + x2 = 0 + -1.05

Reorder the terms:
1.05 + -1.05 + -3x + x2 = 0 + -1.05

Combine like terms: 1.05 + -1.05 = 0.00
0.00 + -3x + x2 = 0 + -1.05
-3x + x2 = 0 + -1.05

Combine like terms: 0 + -1.05 = -1.05
-3x + x2 = -1.05

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = -1.05 + 2.25

Reorder the terms:
2.25 + -3x + x2 = -1.05 + 2.25

Combine like terms: -1.05 + 2.25 = 1.2
2.25 + -3x + x2 = 1.2

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 1.2

Calculate the square root of the right side: 1.095445115

Break this problem into two subproblems by setting 
(x + -1.5) equal to 1.095445115 and -1.095445115.

Subproblem 1

x + -1.5 = 1.095445115 Simplifying x + -1.5 = 1.095445115 Reorder the terms: -1.5 + x = 1.095445115 Solving -1.5 + x = 1.095445115 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 1.095445115 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.095445115 + 1.5 x = 1.095445115 + 1.5 Combine like terms: 1.095445115 + 1.5 = 2.595445115 x = 2.595445115 Simplifying x = 2.595445115

Subproblem 2

x + -1.5 = -1.095445115 Simplifying x + -1.5 = -1.095445115 Reorder the terms: -1.5 + x = -1.095445115 Solving -1.5 + x = -1.095445115 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -1.095445115 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.095445115 + 1.5 x = -1.095445115 + 1.5 Combine like terms: -1.095445115 + 1.5 = 0.404554885 x = 0.404554885 Simplifying x = 0.404554885

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.595445115, 0.404554885}

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