-0.62x+0.15x^2=0.03

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Solution for -0.62x+0.15x^2=0.03 equation:


Simplifying
-0.62x + 0.15x2 = 0.03

Solving
-0.62x + 0.15x2 = 0.03

Solving for variable 'x'.

Reorder the terms:
-0.03 + -0.62x + 0.15x2 = 0.03 + -0.03

Combine like terms: 0.03 + -0.03 = 0.00
-0.03 + -0.62x + 0.15x2 = 0.00

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

Divide each side by '0.15'.
-0.2 + -4.133333333x + x2 = 0

Move the constant term to the right:

Add '0.2' to each side of the equation.
-0.2 + -4.133333333x + 0.2 + x2 = 0 + 0.2

Reorder the terms:
-0.2 + 0.2 + -4.133333333x + x2 = 0 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + -4.133333333x + x2 = 0 + 0.2
-4.133333333x + x2 = 0 + 0.2

Combine like terms: 0 + 0.2 = 0.2
-4.133333333x + x2 = 0.2

The x term is -4.133333333x.  Take half its coefficient (-2.066666667).
Square it (4.271111112) and add it to both sides.

Add '4.271111112' to each side of the equation.
-4.133333333x + 4.271111112 + x2 = 0.2 + 4.271111112

Reorder the terms:
4.271111112 + -4.133333333x + x2 = 0.2 + 4.271111112

Combine like terms: 0.2 + 4.271111112 = 4.471111112
4.271111112 + -4.133333333x + x2 = 4.471111112

Factor a perfect square on the left side:
(x + -2.066666667)(x + -2.066666667) = 4.471111112

Calculate the square root of the right side: 2.114500204

Break this problem into two subproblems by setting 
(x + -2.066666667) equal to 2.114500204 and -2.114500204.

Subproblem 1

x + -2.066666667 = 2.114500204 Simplifying x + -2.066666667 = 2.114500204 Reorder the terms: -2.066666667 + x = 2.114500204 Solving -2.066666667 + x = 2.114500204 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.066666667' to each side of the equation. -2.066666667 + 2.066666667 + x = 2.114500204 + 2.066666667 Combine like terms: -2.066666667 + 2.066666667 = 0.000000000 0.000000000 + x = 2.114500204 + 2.066666667 x = 2.114500204 + 2.066666667 Combine like terms: 2.114500204 + 2.066666667 = 4.181166871 x = 4.181166871 Simplifying x = 4.181166871

Subproblem 2

x + -2.066666667 = -2.114500204 Simplifying x + -2.066666667 = -2.114500204 Reorder the terms: -2.066666667 + x = -2.114500204 Solving -2.066666667 + x = -2.114500204 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.066666667' to each side of the equation. -2.066666667 + 2.066666667 + x = -2.114500204 + 2.066666667 Combine like terms: -2.066666667 + 2.066666667 = 0.000000000 0.000000000 + x = -2.114500204 + 2.066666667 x = -2.114500204 + 2.066666667 Combine like terms: -2.114500204 + 2.066666667 = -0.047833537 x = -0.047833537 Simplifying x = -0.047833537

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.181166871, -0.047833537}

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