0.03x^2-15x+1600=0

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Solution for 0.03x^2-15x+1600=0 equation:


Simplifying
0.03x2 + -15x + 1600 = 0

Reorder the terms:
1600 + -15x + 0.03x2 = 0

Solving
1600 + -15x + 0.03x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.03'.
53333.33333 + -500x + x2 = 0

Move the constant term to the right:

Add '-53333.33333' to each side of the equation.
53333.33333 + -500x + -53333.33333 + x2 = 0 + -53333.33333

Reorder the terms:
53333.33333 + -53333.33333 + -500x + x2 = 0 + -53333.33333

Combine like terms: 53333.33333 + -53333.33333 = 0.00000
0.00000 + -500x + x2 = 0 + -53333.33333
-500x + x2 = 0 + -53333.33333

Combine like terms: 0 + -53333.33333 = -53333.33333
-500x + x2 = -53333.33333

The x term is -500x.  Take half its coefficient (-250).
Square it (62500) and add it to both sides.

Add '62500' to each side of the equation.
-500x + 62500 + x2 = -53333.33333 + 62500

Reorder the terms:
62500 + -500x + x2 = -53333.33333 + 62500

Combine like terms: -53333.33333 + 62500 = 9166.66667
62500 + -500x + x2 = 9166.66667

Factor a perfect square on the left side:
(x + -250)(x + -250) = 9166.66667

Calculate the square root of the right side: 95.742710793

Break this problem into two subproblems by setting 
(x + -250) equal to 95.742710793 and -95.742710793.

Subproblem 1

x + -250 = 95.742710793 Simplifying x + -250 = 95.742710793 Reorder the terms: -250 + x = 95.742710793 Solving -250 + x = 95.742710793 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '250' to each side of the equation. -250 + 250 + x = 95.742710793 + 250 Combine like terms: -250 + 250 = 0 0 + x = 95.742710793 + 250 x = 95.742710793 + 250 Combine like terms: 95.742710793 + 250 = 345.742710793 x = 345.742710793 Simplifying x = 345.742710793

Subproblem 2

x + -250 = -95.742710793 Simplifying x + -250 = -95.742710793 Reorder the terms: -250 + x = -95.742710793 Solving -250 + x = -95.742710793 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '250' to each side of the equation. -250 + 250 + x = -95.742710793 + 250 Combine like terms: -250 + 250 = 0 0 + x = -95.742710793 + 250 x = -95.742710793 + 250 Combine like terms: -95.742710793 + 250 = 154.257289207 x = 154.257289207 Simplifying x = 154.257289207

Solution

The solution to the problem is based on the solutions from the subproblems. x = {345.742710793, 154.257289207}

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