3x^2-1.8x+0.03=0

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Solution for 3x^2-1.8x+0.03=0 equation:


Simplifying
3x2 + -1.8x + 0.03 = 0

Reorder the terms:
0.03 + -1.8x + 3x2 = 0

Solving
0.03 + -1.8x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
0.01 + -0.6x + x2 = 0

Move the constant term to the right:

Add '-0.01' to each side of the equation.
0.01 + -0.6x + -0.01 + x2 = 0 + -0.01

Reorder the terms:
0.01 + -0.01 + -0.6x + x2 = 0 + -0.01

Combine like terms: 0.01 + -0.01 = 0.00
0.00 + -0.6x + x2 = 0 + -0.01
-0.6x + x2 = 0 + -0.01

Combine like terms: 0 + -0.01 = -0.01
-0.6x + x2 = -0.01

The x term is -0.6x.  Take half its coefficient (-0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
-0.6x + 0.09 + x2 = -0.01 + 0.09

Reorder the terms:
0.09 + -0.6x + x2 = -0.01 + 0.09

Combine like terms: -0.01 + 0.09 = 0.08
0.09 + -0.6x + x2 = 0.08

Factor a perfect square on the left side:
(x + -0.3)(x + -0.3) = 0.08

Calculate the square root of the right side: 0.282842712

Break this problem into two subproblems by setting 
(x + -0.3) equal to 0.282842712 and -0.282842712.

Subproblem 1

x + -0.3 = 0.282842712 Simplifying x + -0.3 = 0.282842712 Reorder the terms: -0.3 + x = 0.282842712 Solving -0.3 + x = 0.282842712 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + x = 0.282842712 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + x = 0.282842712 + 0.3 x = 0.282842712 + 0.3 Combine like terms: 0.282842712 + 0.3 = 0.582842712 x = 0.582842712 Simplifying x = 0.582842712

Subproblem 2

x + -0.3 = -0.282842712 Simplifying x + -0.3 = -0.282842712 Reorder the terms: -0.3 + x = -0.282842712 Solving -0.3 + x = -0.282842712 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + x = -0.282842712 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + x = -0.282842712 + 0.3 x = -0.282842712 + 0.3 Combine like terms: -0.282842712 + 0.3 = 0.017157288 x = 0.017157288 Simplifying x = 0.017157288

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.582842712, 0.017157288}

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